diff --git a/apps/builder/.env.docker b/apps/builder/.env.docker
index 343791d83..6693e3c92 100644
--- a/apps/builder/.env.docker
+++ b/apps/builder/.env.docker
@@ -5,3 +5,4 @@ NEXT_PUBLIC_GOOGLE_API_KEY=
 NEXT_PUBLIC_GIPHY_API_KEY=
 NEXT_PUBLIC_STRIPE_PUBLIC_KEY=
 NEXT_PUBLIC_SENTRY_DSN=
+NEXT_PUBLIC_VIEWER_INTERNAL_URL=