diff --git a/topgrade.aliases b/topgrade.aliases
index 0eb594c..8eb4756 100644
--- a/topgrade.aliases
+++ b/topgrade.aliases
@@ -8,7 +8,7 @@ TOPGRADE_CONF_REPO="https://git.deathbybandaid.net/deathbybandaid/topgrade.git"
 topgrade ()
 {
   if [[ -f "$TOPGRADE_PATH" ]] ; then
-    $TOPGRADE_PATH $0
+    $TOPGRADE_PATH $?
   else
     echo "topgrade not found at $TOPGRADE_PATH"
   fi