diff --git a/apps/edr-passenger-api/Dockerfile b/apps/edr-passenger-api/Dockerfile
index 45b365496..bd06feb8b 100644
--- a/apps/edr-passenger-api/Dockerfile
+++ b/apps/edr-passenger-api/Dockerfile
@@ -57,4 +57,7 @@ RUN addgroup --system --gid 1001 nodejs \
 COPY --from=deployer --chown=nestjs:nodejs /deploy .
 USER nestjs
 EXPOSE 4000
-CMD ["node", "dist/main.js"]
+# --enable-source-maps: translate stack-trace frames from dist/*.js back to
+# src/*.ts using the .js.map files nest build emits (tsconfig sourceMap:true).
+# Without it Node reports compiled JS line numbers, not TypeScript source.
+CMD ["node", "--enable-source-maps", "dist/main.js"]