diff --git a/man/Makefile b/man/Makefile
index c3a13fb9188907d45ab1ea44eb83be46292907ed..293d2b726e35488cbe2f961b1f568d05d9f64619 100644
--- a/man/Makefile
+++ b/man/Makefile
@@ -12,7 +12,7 @@ all: ${TARGETS}
 	< ${@:.1=.pre} > $@
 
 clean:
-	rm *.1
+	rm -f *.1
 
 .SUFFIXES: .pre .1