diff --git a/packages/web/Dockerfile b/packages/web/Dockerfile
index 33f1f7d..0cc3a22 100644
--- a/packages/web/Dockerfile
+++ b/packages/web/Dockerfile
@@ -9,6 +9,9 @@ RUN corepack enable && corepack prepare pnpm@latest --activate
 COPY package.json pnpm-lock.yaml ./
 COPY . .
 
+# Create placeholder .env.local if not exists (needed for prod build)
+RUN test -f .env.local || echo "# placeholder" > .env.local
+
 # Install dependencies
 RUN pnpm install --frozen-lockfile --ignore-scripts