diff --git a/scripts/bootstrapit_update.sh b/scripts/bootstrapit_update.sh
index 81221b7..b5c8e08 100644
--- a/scripts/bootstrapit_update.sh
+++ b/scripts/bootstrapit_update.sh
@@ -104,7 +104,7 @@ if [[ -z $MODULE_NAME ]]; then
 fi
 
 if [[ -z $PACKAGE_VERSION ]]; then
-    PACKAGE_VERSION="$(date + 'v%Y%m.0001-alpha')"
+    PACKAGE_VERSION="$(date +'v%Y%m.0001-alpha')"
 fi
 
 if [[ -z $DEFAULT_PYTHON_VERSION ]]; then