diff --git a/backend/Dockerfile b/backend/Dockerfile
index ccb6edd..c44d951 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -68,4 +68,4 @@ HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
   CMD node -e "require('http').get('http://localhost:8080/health', (r) => {process.exit(r.statusCode === 200 ? 0 : 1)})"
 
 # Run DB migrations if present, then start application
-CMD ["/bin/sh", "-lc", "[ -f dist/migrate.js ] && node dist/migrate.js || true; node dist/index.js"]
+CMD ["/bin/sh", "-lc", "mkdir -p /app/data/images/events /app/data/images/gallery && [ -f dist/migrate.js ] && node dist/migrate.js || true; node dist/index.js"]