diff --git a/git-quick-stats b/git-quick-stats
index 76a7d90..16f9d08 100755
--- a/git-quick-stats
+++ b/git-quick-stats
@@ -74,14 +74,14 @@ _theme="${_MENU_THEME:=default}"
 # ARGS: None
 # OUTS: None
 ################################################################################
-function checkUtils() {
-    local -r msg="not found. Please make sure this is installed and in PATH."
-    declare -ar utils=("awk" "basename" "cat" "column" "echo" "git" "grep" "head"
-        "seq" "sort" "tput" "tr" "uniq" "wc")
+checkUtils() {
+    readonly MSG="not found. Please make sure this is installed and in PATH."
+    readonly UTILS="awk basename cat column echo git grep head seq sort tput \
+		tr uniq wc"
 
-    for u in "${utils[@]}"
+    for u in $UTILS
     do
-        command -v "$u" >/dev/null 2>&1 || { echo >&2 "$u ${msg}"; exit 1; }
+        command -v "$u" >/dev/null 2>&1 || { echo >&2 "$u ${MSG}"; exit 1; }
     done
 }