diff --git a/zypper_autoremove.bash b/zypper_autoremove.bash
index b0a75f7..b43852f 100755
--- a/zypper_autoremove.bash
+++ b/zypper_autoremove.bash
@@ -13,7 +13,7 @@ done < <(echo "$package_list" | tail -n+$((table_start+2)))
 
 unneeded_package_list=$(printf '%s ' "${unneeded_packages[@]}")
 
-if [ ! "$unneeded_package_list" = " " ]; then
+if [ -n "$(echo $unneeded_package_list | tr -d ' ')" ]; then
     sudo zypper rm -u $unneeded_package_list
 else
     echo "No unneeded packages."