diff --git a/gflib/malloc.h b/gflib/malloc.h
index e21bd5a2c86b..851db83a62e5 100644
--- a/gflib/malloc.h
+++ b/gflib/malloc.h
@@ -2,11 +2,10 @@
 #define GUARD_ALLOC_H
 
 #define HEAP_SIZE 0x1C000
-#define free Free
 
 #define FREE_AND_SET_NULL(ptr)          \
 {                                       \
-    free(ptr);                          \
+    Free(ptr);                          \
     ptr = NULL;                         \
 }
 
diff --git a/src/battle_pike.c b/src/battle_pike.c
index 139ea497ba4d..4f9af98ea685 100644
--- a/src/battle_pike.c
+++ b/src/battle_pike.c
@@ -1084,7 +1084,7 @@ static u8 GetNextRoomType(void)
     }
 
     nextRoomType = roomCandidates[Random() % numRoomCandidates];
-    free(roomCandidates);
+    Free(roomCandidates);
     if (nextRoomType == PIKE_ROOM_STATUS)
         TryInflictRandomStatus();
 
@@ -1363,7 +1363,7 @@ static void SetHintedRoom(void)
         }
 
         gSaveBlock2Ptr->frontier.pikeHintedRoomType = roomCandidates[Random() % count];
-        free(roomCandidates);
+        Free(roomCandidates);
         if (gSaveBlock2Ptr->frontier.pikeHintedRoomType == PIKE_ROOM_STATUS && !AtLeastOneHealthyMon())
             gSaveBlock2Ptr->frontier.pikeHintedRoomType = PIKE_ROOM_NPC;
         if (gSaveBlock2Ptr->frontier.pikeHintedRoomType == PIKE_ROOM_DOUBLE_BATTLE && !AtLeastTwoAliveMons())
diff --git a/src/battle_pyramid.c b/src/battle_pyramid.c
index 6e8c6a37eaa4..cbc1589bd950 100644
--- a/src/battle_pyramid.c
+++ b/src/battle_pyramid.c
@@ -1568,7 +1568,7 @@ void GenerateBattlePyramidFloorLayout(u16 *backupMapData, bool8 setPlayerPositio
         }
     }
     RunOnLoadMapScript();
-    free(floorLayoutOffsets);
+    Free(floorLayoutOffsets);
 }
 
 void LoadBattlePyramidObjectEventTemplates(void)
@@ -1697,7 +1697,7 @@ static void SetPyramidObjectPositionsUniformly(u8 objType)
         } while (!(bits & 4) && TrySetPyramidObjectEventPositionInSquare(objType, floorLayoutOffsets, squareId, objectStartIndex + i));
         bits &= 1;
     }
-    free(floorLayoutOffsets);
+    Free(floorLayoutOffsets);
 }
 
 static bool8 SetPyramidObjectPositionsInAndNearSquare(u8 objType, u8 squareId)
@@ -1760,7 +1760,7 @@ static bool8 SetPyramidObjectPositionsInAndNearSquare(u8 objType, u8 squareId)
         r7 &= 1;
     }
     #ifdef BUGFIX
-    free(floorLayoutOffsets);
+    Free(floorLayoutOffsets);
     #endif
 
     return (numObjects / 2) > numPlacedObjects;
@@ -1814,7 +1814,7 @@ static bool8 SetPyramidObjectPositionsNearSquare(u8 objType, u8 squareId)
             break;
     }
     #ifdef BUGFIX
-    free(floorLayoutOffsets);
+    Free(floorLayoutOffsets);
     #endif
 
     return (numObjects / 2) > numPlacedObjects;
diff --git a/src/decoration.c b/src/decoration.c
index 2384daa80178..cd3e185da3ce 100644
--- a/src/decoration.c
+++ b/src/decoration.c
@@ -1000,7 +1000,7 @@ static void HandleDecorationItemsMenuInput(u8 taskId)
             DestroyListMenuTask(tMenuTaskId, &sDecorationsScrollOffset, &sDecorationsCursorPos);
             RemoveDecorationWindow(WINDOW_DECORATION_CATEGORIES);
             RemoveDecorationItemsOtherWindows();
-            free(sDecorationItemsMenu);
+            Free(sDecorationItemsMenu);
             sSecretBasePC_SelectedDecorationActions[tDecorationMenuCommand][0](taskId);
             break;
         }
@@ -1161,7 +1161,7 @@ static void DecorationItemsMenuAction_Cancel(u8 taskId)
     RemoveDecorationItemsScrollIndicators();
     RemoveDecorationItemsOtherWindows();
     DestroyListMenuTask(tMenuTaskId, NULL, NULL);
-    free(sDecorationItemsMenu);
+    Free(sDecorationItemsMenu);
     ReinitDecorationCategoriesWindow(taskId);
 }
 
@@ -2066,7 +2066,7 @@ static u8 AddDecorationIconObjectFromIconTable(u16 tilesTag, u16 paletteTag, u8
     template->paletteTag = paletteTag;
     spriteId = CreateSprite(template, 0, 0, 0);
     FreeItemIconTemporaryBuffers();
-    free(template);
+    Free(template);
     return spriteId;
 }
 
@@ -2105,7 +2105,7 @@ static u8 AddDecorationIconObjectFromObjectEvent(u16 tilesTag, u16 paletteTag, u
         template->tileTag = tilesTag;
         template->paletteTag = paletteTag;
         spriteId = CreateSprite(template, 0, 0, 0);
-        free(template);
+        Free(template);
     }
     else
     {
diff --git a/src/event_object_movement.c b/src/event_object_movement.c
index 83f12c4bb618..1e8668d55cc3 100644
--- a/src/event_object_movement.c
+++ b/src/event_object_movement.c
@@ -1543,7 +1543,7 @@ u8 CreateObjectGraphicsSprite(u16 graphicsId, void (*callback)(struct Sprite *),
         LoadObjectEventPalette(spriteTemplate->paletteTag);
 
     spriteId = CreateSprite(spriteTemplate, x, y, subpriority);
-    free(spriteTemplate);
+    Free(spriteTemplate);
 
     if (spriteId != MAX_SPRITES && subspriteTables != NULL)
     {
diff --git a/src/frontier_util.c b/src/frontier_util.c
index 7906df73669a..686b69388aac 100644
--- a/src/frontier_util.c
+++ b/src/frontier_util.c
@@ -2298,7 +2298,7 @@ static void Fill1PRecords(struct RankingHall1P *dst, s32 hallFacilityId, s32 lvl
         record1P[highestId].winStreak = 0;
     }
 
-    free(playerHallRecords);
+    Free(playerHallRecords);
 }
 
 static void Fill2PRecords(struct RankingHall2P *dst, s32 lvlMode)
@@ -2332,7 +2332,7 @@ static void Fill2PRecords(struct RankingHall2P *dst, s32 lvlMode)
         record2P[highestId].winStreak = 0;
     }
 
-    free(playerHallRecords);
+    Free(playerHallRecords);
 }
 
 static void PrintHallRecords(s32 hallFacilityId, s32 lvlMode)
@@ -2436,7 +2436,7 @@ void SaveGameFrontier(void)
     for (i = 0; i < PARTY_SIZE; i++)
         gPlayerParty[i] = monsParty[i];
 
-    free(monsParty);
+    Free(monsParty);
 }
 
 // Frontier Brain functions.
diff --git a/src/link_rfu_3.c b/src/link_rfu_3.c
index 26102a8c3d65..0d028cd48abc 100644
--- a/src/link_rfu_3.c
+++ b/src/link_rfu_3.c
@@ -955,7 +955,7 @@ void SaveLinkTrainerNames(void)
 
         // Finalize the new list, and clean up.
         memcpy(gSaveBlock1Ptr->trainerNameRecords, newRecords, sizeof(gSaveBlock1Ptr->trainerNameRecords));
-        free(newRecords);
+        Free(newRecords);
     }
 }
 
diff --git a/src/record_mixing.c b/src/record_mixing.c
index 72edd52f2936..5d75f3fc8962 100644
--- a/src/record_mixing.c
+++ b/src/record_mixing.c
@@ -358,8 +358,8 @@ static void Task_RecordMixing_Main(u8 taskId)
     case 5: // Wait for the task created by CreateTask_ReestablishCableClubLink
         if (!gTasks[tLinkTaskId].isActive)
         {
-            free(sReceivedRecords);
-            free(sSentRecord);
+            Free(sReceivedRecords);
+            Free(sSentRecord);
             SetLinkWaitingForScript();
             if (gWirelessCommType != 0)
                 CreateTask(Task_ReturnToFieldRecordMixing, 10);
@@ -705,7 +705,7 @@ static void ReceiveLilycoveLadyData(LilycoveLady *records, size_t recordSize, u8
     if (lilycoveLady != NULL)
     {
         QuizLadyClearQuestionForRecordMix(lilycoveLady);
-        free(lilycoveLady);
+        Free(lilycoveLady);
     }
 }
 
diff --git a/src/recorded_battle.c b/src/recorded_battle.c
index e8785b5f82af..dead1dd7e3bc 100644
--- a/src/recorded_battle.c
+++ b/src/recorded_battle.c
@@ -475,8 +475,8 @@ bool32 MoveRecordedBattleToSaveData(void)
             break;
     }
 
-    free(battleSave);
-    free(savSection);
+    Free(battleSave);
+    Free(savSection);
     return ret;
 }
 
diff --git a/src/secret_base.c b/src/secret_base.c
index 7459ba66b077..ea199934399e 100644
--- a/src/secret_base.c
+++ b/src/secret_base.c
@@ -1006,7 +1006,7 @@ static void HandleRegistryMenuInput(u8 taskId)
         ClearWindowTilemap(tMainWindowId);
         RemoveWindow(tMainWindowId);
         ScheduleBgCopyTilemapToVram(0);
-        free(sRegistryMenu);
+        Free(sRegistryMenu);
         GoToSecretBasePCRegisterMenu(taskId);
         break;
     default:
diff --git a/src/tv.c b/src/tv.c
index 530dd5d94335..b32881d09067 100644
--- a/src/tv.c
+++ b/src/tv.c
@@ -3488,7 +3488,7 @@ void ReceiveTvShowsData(void *src, u32 size, u8 playersLinkId)
         CompactTVShowArray(gSaveBlock1Ptr->tvShows);
         DeactivateShowsWithUnseenSpecies();
         DeactivateGameCompleteShowsIfNotUnlocked();
-        free(rmBuffer2);
+        Free(rmBuffer2);
     }
 }
 
@@ -3861,7 +3861,7 @@ void ReceivePokeNewsData(void *src, u32 size, u8 playersLinkId)
         }
         ClearInvalidPokeNews();
         ClearPokeNewsIfGameNotComplete();
-        free(rmBuffer2);
+        Free(rmBuffer2);
     }
 }
 
@@ -4023,7 +4023,7 @@ static void TranslateShowNames(TVShow *show, u32 language)
             break;
         }
     }
-    free(shows);
+    Free(shows);
 }
 
 void SanitizeTVShowsForRuby(TVShow *shows)
diff --git a/src/union_room.c b/src/union_room.c
index 7d1417671786..b47ddb41c006 100644
--- a/src/union_room.c
+++ b/src/union_room.c
@@ -3365,12 +3365,12 @@ static void Task_InitUnionRoom(u8 taskId)
         }
         break;
     case 4:
-        free(data->spawnPlayer);
-        free(data->playerList);
-        free(data->incomingParentList);
-        free(data->incomingChildList);
+        Free(data->spawnPlayer);
+        Free(data->playerList);
+        Free(data->incomingParentList);
+        Free(data->incomingChildList);
         DestroyTask(data->searchTaskId);
-        free(sWirelessLinkMain.uRoom);
+        Free(sWirelessLinkMain.uRoom);
         LinkRfu_Shutdown();
         DestroyTask(taskId);
         break;