diff --git a/tools/configure_for_func_testing.sh b/tools/configure_for_func_testing.sh
index 13bcc70fe04..f124bdf2935 100755
--- a/tools/configure_for_func_testing.sh
+++ b/tools/configure_for_func_testing.sh
@@ -58,6 +58,7 @@ VENV=${VENV:-dsvm-functional}
 DEVSTACK_PATH=${DEVSTACK_PATH:-$1}
 PROJECT_NAME=${PROJECT_NAME:-neutron}
 REPO_BASE=${GATE_DEST:-$(cd $(dirname "$0")/../.. && pwd)}
+NEUTRON_PATH=${NEUTRON_PATH:=$REPO_BASE/$PROJECT_NAME}
 INSTALL_MYSQL_ONLY=${INSTALL_MYSQL_ONLY:-False}
 # The gate should automatically install dependencies.
 INSTALL_BASE_DEPENDENCIES=${INSTALL_BASE_DEPENDENCIES:-$IS_GATE}