--- a/Makefile	Sun Jan 15 14:20:25 2012 +0100
+++ b/Makefile	Wed Feb 08 23:43:02 2012 +0100
@@ -53,7 +53,7 @@
 	./build/test$(APP_EXT)
 
 clean: FORCE
-	$(RM) $(RMFLAGS) build/*
+	$(RM) $(RMFLAGS) build/*.${OBJ_EXT}
 
 FORCE: