diff --git a/ponydos.asm b/ponydos.asm
index 47ee706..6d9ff5a 100644
--- a/ponydos.asm
+++ b/ponydos.asm
@@ -194,7 +194,7 @@ mouse_handler:
 			cmp word [mouse_y], Y_MAX_VALUE
 			jb .y_end
 			mov word [mouse_y], Y_MAX_VALUE
-	.y_end
+	.y_end:
 
 	and bl, BUTTONS
 	mov [mouse_buttons], bl