diff --git a/tests/cp/acl b/tests/cp/acl
index 3b21d9a14..2bf637c2f 100755
--- a/tests/cp/acl
+++ b/tests/cp/acl
@@ -1,5 +1,5 @@
 #!/bin/sh
-# copy files/directories across filesystem boundaries
+# copy files/directories across file system boundaries
 # and make sure acls are preserved appropriately
 
 . $srcdir/../acl