diff --git a/tools/scripts/mk-drupal-test-site b/tools/scripts/mk-drupal-test-site
index ae4a830bc5120ba6b9194478dd1850a59e5cd05c..f96f937fdd59841a408d226e7076a95a366bc745 100755
--- a/tools/scripts/mk-drupal-test-site
+++ b/tools/scripts/mk-drupal-test-site
@@ -96,6 +96,7 @@ popd
 ## Create CiviCRM config
 cat > "$CIVI_ROOT/bin/setup.conf" << EOF
   SVNROOT="$CIVI_ROOT"
+  CIVISOURCEDIR="$CIVI_ROOT"
   SCHEMA=schema/Schema.xml
   DBNAME="$DB_NAME"
   DBUSER="$DB_USER"