diff --git a/packages/backend-core/src/utils/utils.ts b/packages/backend-core/src/utils/utils.ts
index 30cf55b149..7f2e25b6d4 100644
--- a/packages/backend-core/src/utils/utils.ts
+++ b/packages/backend-core/src/utils/utils.ts
@@ -247,3 +247,7 @@ export function hasCircularStructure(json: any) {
   }
   return false
 }
+
+export function urlHasProtocol(url: string): boolean {
+  return !!url.match(/^.+:\/\/.+$/)
+}
diff --git a/packages/server/package.json b/packages/server/package.json
index 9a70ecba9c..37df7138d7 100644
--- a/packages/server/package.json
+++ b/packages/server/package.json
@@ -159,6 +159,7 @@
     "@types/tar": "6.1.5",
     "@types/tmp": "0.2.6",
     "@types/uuid": "8.3.4",
+    "@smithy/types": "4.0.0",
     "chance": "^1.1.12",
     "copyfiles": "2.4.1",
     "docker-compose": "0.23.17",
diff --git a/packages/server/src/api/controllers/static/index.ts b/packages/server/src/api/controllers/static/index.ts
index 327ce5369f..6b8ecda0d9 100644
--- a/packages/server/src/api/controllers/static/index.ts
+++ b/packages/server/src/api/controllers/static/index.ts
@@ -340,7 +340,7 @@ export const getSignedUploadURL = async function (
     }
     try {
       let endpoint = datasource?.config?.endpoint
-      if (endpoint && !endpoint.startsWith("http")) {
+      if (endpoint && !utils.urlHasProtocol(endpoint)) {
         endpoint = `https://${endpoint}`
       }
       const s3 = new S3({