diff --git a/mo b/mo
index bd9e2ad..598c566 100755
--- a/mo
+++ b/mo
@@ -820,7 +820,7 @@ moTrimWhitespace() {
 #
 # Returns nothing.
 moUsage() {
-    grep '^#/' < "$1" | cut -c 4-
+    grep '^#/' "$1" | cut -c 4-
 }