diff --git a/akarin b/akarin
index 83a37bbf0..44eac9520 100755
--- a/akarin
+++ b/akarin
@@ -20,7 +20,7 @@ case "$1" in
         set -e
         cd "$basedir"
         if [ "$2" != "fast" ]; then
-          scripts/upstream.sh || exit 1
+          scripts/upstream.sh "$basedir" || exit 1
         fi
         scripts/apply.sh "$basedir" || exit 1
     ) || failed=1