diff --git a/tools/semver_git_tag b/tools/semver_git_tag
index b9c1f79..c6524d6 100755
--- a/tools/semver_git_tag
+++ b/tools/semver_git_tag
@@ -123,7 +123,20 @@ if [[ -z $COMMAND ]]; then
 	echo -n "Press 'M' for Major, 'm' for minor, 'p' for patch ? "
 	read -rn1 input
 	echo
-	COMMAND="-$input"
+	case "$input" in
+		'M')
+			COMMAND='major'
+			;;
+		'm')
+			COMMAND='minor'
+			;;
+		'p')
+			COMMAND='patch'
+		*)
+			echo >&2 "Unknown option: $input"
+			exit 3
+			;;
+		esac	
 fi
 
 case $COMMAND in
@@ -139,9 +152,6 @@ case $COMMAND in
 "patch")
 	let "PATCH++"
 	;;
-*)
-	echo >&2 "unknown COMMAND=$COMMAND" && exit 3
-	;;
 esac
 
 echo "show TAG"