diff --git a/pkgroot/usr/bin/nekofetch b/pkgroot/usr/bin/nekofetch
index 4b8bff3..60f4645 100755
--- a/pkgroot/usr/bin/nekofetch
+++ b/pkgroot/usr/bin/nekofetch
@@ -24,7 +24,7 @@ case "$1" in
         ;;
 esac
 
-height=${2:-$(($(stty size | awk '{print $1}') - 5))}
+echo "$2" | grep -qE '^[0-9]+$' && height="$2" || height="$(($(stty size | awk '{print $1}') - 5))"
 echo "Using height $height"
 
 url=$(curl -fsSL "$imgurl" | jq -r ".url")