diff --git a/Makefile b/Makefile
index 3b294429..5fc66f25 100644
--- a/Makefile
+++ b/Makefile
@@ -8,7 +8,7 @@ clean:
 	rm -rf _build
 	rm -rf _sources
 	rm -rf _static
-	rm *.html
+	rm -f *.html
 
 
 # Build GitHub Page from docs