diff --git a/shell/alias/chmod.sh b/shell/alias/chmod.sh
index 4df1df3..c523a11 100644
--- a/shell/alias/chmod.sh
+++ b/shell/alias/chmod.sh
@@ -1,11 +1,13 @@
 # change mode as directory
-alias cmd="\
-chmod \
-\"755\" \
-"
+cmd() {
+	chmod \
+		"755" \
+		"${@}"
+}
 
 # change mode as file
-alias cmf="\
-chmod \
-\"644\" \
-"
+cmf() {
+	chmod \
+		"644" \
+		"${@}"
+}