diff --git a/.changeset/late-clocks-retire.md b/.changeset/late-clocks-retire.md
new file mode 100644
index 0000000000..64b79261b9
--- /dev/null
+++ b/.changeset/late-clocks-retire.md
@@ -0,0 +1,5 @@
+---
+"effect": patch
+---
+
+Fix the ordering of results returned from batched requests
diff --git a/packages/effect/src/internal/blockedRequests.ts b/packages/effect/src/internal/blockedRequests.ts
index 75fbe141bd..9f49848c59 100644
--- a/packages/effect/src/internal/blockedRequests.ts
+++ b/packages/effect/src/internal/blockedRequests.ts
@@ -385,7 +385,7 @@ export const parallelCollectionCombine = (
       key,
       Option.match(HashMap.get(map, key), {
         onNone: () => value,
-        onSome: (a) => [...a, ...value]
+        onSome: (other) => [...value, ...other]
       })
     )))