diff --git a/tmk_core/protocol/ps2_mouse.c b/tmk_core/protocol/ps2_mouse.c
index f247ba8dca17..04c15dd4fdc9 100644
--- a/tmk_core/protocol/ps2_mouse.c
+++ b/tmk_core/protocol/ps2_mouse.c
@@ -283,4 +283,4 @@ static inline void ps2_mouse_scroll_button_task(report_mouse_t *mouse_report) {
     }
 
     RELEASE_SCROLL_BUTTONS;
-}
\ No newline at end of file
+}
diff --git a/tmk_core/protocol/ps2_mouse.h b/tmk_core/protocol/ps2_mouse.h
index 3b498059dcb7..e11c705fc65f 100644
--- a/tmk_core/protocol/ps2_mouse.h
+++ b/tmk_core/protocol/ps2_mouse.h
@@ -66,6 +66,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #ifndef PS2_MOUSE_SCROLL_MASK       
 #define PS2_MOUSE_SCROLL_MASK           0xFF 
 #endif
+#ifndef PS2_MOUSE_INIT_DELAY
+#define PS2_MOUSE_INIT_DELAY            1000
+#endif
 
 enum ps2_mouse_command_e {
     PS2_MOUSE_RESET = 0xFF,