diff --git a/quantum/mousekey.c b/quantum/mousekey.c
index 63e74baa935..99bfd6b96f3 100644
--- a/quantum/mousekey.c
+++ b/quantum/mousekey.c
@@ -108,7 +108,7 @@ static uint8_t wheel_unit(void) {
 }
 
 #    else /* #ifndef MK_COMBINED */
-#        ifndef MK_KINETIC_SPEED
+#        ifdef MK_KINETIC_SPEED
 
 /*
  * Kinetic movement  acceleration algorithm