diff --git a/Makefile b/Makefile
index 481b18e..164c794 100644
--- a/Makefile
+++ b/Makefile
@@ -69,7 +69,7 @@ manpages += prun/prun.1 prun/pman.1 prun/ptype.1
 all: $(manpages)
 
 clean:
-	@rm $(manpages)
+	@rm -f $(manpages)
 
 install: all
 	@prefix="$(prefix)" usr_prefix="$(usr_prefix)" usrlocal_prefix="$(usrlocal_prefix)" \