diff --git a/apps/mobile/metro.config.js b/apps/mobile/metro.config.js
index f4f52ea..cd3c3fa 100644
--- a/apps/mobile/metro.config.js
+++ b/apps/mobile/metro.config.js
@@ -18,5 +18,10 @@ config.resolver.nodeModulesPaths = [
   path.resolve(workspaceRoot, 'node_modules'),
 ];
 config.resolver.disableHierarchicalLookup = true;
+// Make Metro honor the "exports" field in package.json. @chat-app/shared
+// maps subpaths like "./supabase" -> "./src/supabase/index.ts" via exports;
+// without this flag the eager bundler (preview/production) ignores them
+// and falls back to legacy main-only resolution, which 404s on subpaths.
+config.resolver.unstable_enablePackageExports = true;
 
 module.exports = config;