diff --git a/CLAUDE.md b/CLAUDE.md
index ebdc6ead4f30..256b2edcbf24 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -136,12 +136,13 @@ pnpm -r --filter='./packages/**' build
 
 ### Environment files
 
-| File                            | Purpose                                                  |
-| ------------------------------- | -------------------------------------------------------- |
-| `apps/builder/.env`             | Default config (DB URL, PostgREST URL, `DEV_LOGIN=true`) |
-| `apps/builder/.env.development` | Local overrides (`AUTH_SECRET=1234`, `DOCKER_DEV=true`)  |
+| File                            | Purpose                                                                                                       |
+| ------------------------------- | ------------------------------------------------------------------------------------------------------------- |
+| `apps/builder/.env`             | Default config (DB URL, PostgREST URL, `DEV_LOGIN=true`)                                                      |
+| `apps/builder/.env.development` | Local overrides (`AUTH_SECRET=1234`, `DOCKER_DEV=true`)                                                       |
+| `apps/builder/.npmrc`           | pnpm hoisting config — forces `react-router-dom` top-level symlink in `pnpm deploy --prod` (Docker image fix) |
 
-Both files are committed. Edit `.env.development` for machine-specific overrides.
+Both env files are committed. Edit `.env.development` for machine-specific overrides.
 
 ---
 
diff --git a/apps/builder/Dockerfile b/apps/builder/Dockerfile
index 2076ef6db87c..5d4401521e48 100644
--- a/apps/builder/Dockerfile
+++ b/apps/builder/Dockerfile
@@ -57,6 +57,14 @@ RUN pnpm --filter=@webstudio-is/http-client build && \
 # (not in the package's own .gitignore) specifically so pnpm deploy includes it.
 RUN pnpm --filter "@webstudio-is/builder" --prod deploy /standalone
 
+# pnpm v9 with autoInstallPeers=true does not create a top-level symlink for
+# react-router-dom: it treats it as already provided via @remix-run/react's peer
+# resolution, so Node cannot find it at runtime (ERR_MODULE_NOT_FOUND).
+# Create the symlink explicitly from the virtual store.
+RUN entry=$(ls /standalone/node_modules/.pnpm | grep '^react-router-dom@' | head -1) && \
+    [ -n "$entry" ] && [ ! -e /standalone/node_modules/react-router-dom ] && \
+    ln -sf ".pnpm/$entry/node_modules/react-router-dom" /standalone/node_modules/react-router-dom || true
+
 # ─── Stage 2: prisma-cli ─────────────────────────────────────────────────────
 # Install the Prisma CLI in isolation so it carries Alpine-compatible engine binaries
 # without polluting the app's node_modules.