diff --git a/Dockerfiles/frontend_build.env b/Dockerfiles/frontend_build.env
index bcd5a95..e54a1f1 100644
--- a/Dockerfiles/frontend_build.env
+++ b/Dockerfiles/frontend_build.env
@@ -1,4 +1,5 @@
 VITE_OBP_API_HOST=VITE_OBP_API_HOST
+VITE_OBP_API_PORTAL_HOST=VITE_OBP_API_PORTAL_HOST
 VITE_OBP_API_MANAGER_HOST=VITE_OBP_API_MANAGER_HOST
 VITE_OBP_API_VERSION=v5.1.0