diff --git a/Dockerfile.allinone b/Dockerfile.allinone
index 0765deb15..12eee5c90 100644
--- a/Dockerfile.allinone
+++ b/Dockerfile.allinone
@@ -28,12 +28,15 @@ COPY surfsense_web/package.json surfsense_web/pnpm-lock.yaml* ./
 COPY surfsense_web/source.config.ts ./
 COPY surfsense_web/content ./content
 
-# Install dependencies
-RUN pnpm install --frozen-lockfile
+# Install dependencies (skip postinstall which requires all source files)
+RUN pnpm install --frozen-lockfile --ignore-scripts
 
 # Copy source
 COPY surfsense_web/ ./
 
+# Run fumadocs-mdx postinstall now that source files are available
+RUN pnpm fumadocs-mdx
+
 # Build args for frontend
 ARG NEXT_PUBLIC_FASTAPI_BACKEND_URL=http://localhost:8000
 ARG NEXT_PUBLIC_FASTAPI_BACKEND_AUTH_TYPE=LOCAL