diff --git a/library/Makefile b/library/Makefile
index f4b39bd..cf6750d 100644
--- a/library/Makefile
+++ b/library/Makefile
@@ -200,5 +200,6 @@
 ifndef WINDOWS
 	rm -f *.o libmbed*
 else
-	del /Q /F *.o libmbed*
+	if exist *.o del /Q /F *.o
+	if exist libmbed* del /Q /F libmbed*
 endif