diff --git a/concourse/tasks/build-theia-package.sh b/concourse/tasks/build-theia-package.sh
index b05ca5a4c..93656932f 100755
--- a/concourse/tasks/build-theia-package.sh
+++ b/concourse/tasks/build-theia-package.sh
@@ -13,7 +13,7 @@ else
    echo "!!!This may slow down the build!!!"
 fi
 
-cd "$sxt_folder"
+cd "$ext_folder"
 
 timestamp=`date -u +%Y%m%d%H%M`