diff --git a/zsnes/src/makefile.win b/zsnes/src/makefile.win
index 7f766d51..0fa0032f 100644
--- a/zsnes/src/makefile.win
+++ b/zsnes/src/makefile.win
@@ -235,7 +235,7 @@ clean:
 	del ${WINDIR}\zsnes.res
 	del ${ZIPDIR}\*.obj
 	del ${DOSDIR}\*.obj
-	del ${EFFECTSDIR}\*.o
+	del ${EFFECTSDIR}\*.obj
 	del zsnesw.exe