diff --git a/files/dwm/volume.function b/files/dwm/volume.function
index 39664c5..325ba47 100755
--- a/files/dwm/volume.function
+++ b/files/dwm/volume.function
@@ -49,7 +49,7 @@ function volume {
 	fi
 
 	dir=""
-	typeset -i amt
+	amt=""
 
 	# Check if format is written text.
 	if [[ "$1" == "full" || "$1" == "max" ]]; then
@@ -89,11 +89,15 @@ function volume {
 		fi
 		if [[ -n "$dir" && -z "$amt" ]]; then
 			amt="$1"
+			amt=${amt//-/}
+			amt=${amt//+/}
 		fi
 	fi
 
-	amt=${amt//-/}
-	amt=${amt//+/}
+	# Check if format is direct volume.
+	if [[ -z "$dir" && -z "$amt" && -n "$1" && -z "$2" ]]; then
+		amt="$1"
+	fi
 
 	if [[ -n "$dir" && -n "$amt" ]]; then
 		echo "> Changing volume by '$dir$amt%'."