diff --git a/Source/missiles.cpp b/Source/missiles.cpp
index e422e48c2..878a5caef 100644
--- a/Source/missiles.cpp
+++ b/Source/missiles.cpp
@@ -3209,7 +3209,7 @@ void MI_Firemove(int i)
 		if (missile[i]._mix != missile[i]._miVar3 || missile[i]._miy != missile[i]._miVar4) {
 			missile[i]._miVar3 = missile[i]._mix;
 			missile[i]._miVar4 = missile[i]._miy;
-			ChangeLight(missile[i]._mlid, missile[i]._mix, missile[i]._miy, 8);
+			ChangeLight(missile[i]._mlid, missile[i]._miVar3, missile[i]._miVar4, 8);
 		}
 	} else {
 		if (!missile[i]._miVar2)