diff --git a/packages/core/storage-js/src/packages/StorageBucketApi.ts b/packages/core/storage-js/src/packages/StorageBucketApi.ts
index 7bf082714..a2b7157fc 100644
--- a/packages/core/storage-js/src/packages/StorageBucketApi.ts
+++ b/packages/core/storage-js/src/packages/StorageBucketApi.ts
@@ -28,7 +28,7 @@ export default class StorageBucketApi {
       }
     }
 
-    this.url = baseUrl.href
+    this.url = baseUrl.href.replace(/\/$/, '')
     this.headers = { ...DEFAULT_HEADERS, ...headers }
     this.fetch = resolveFetch(fetch)
   }
diff --git a/packages/core/storage-js/test/storageBucketApi.test.ts b/packages/core/storage-js/test/storageBucketApi.test.ts
index cba6a6014..ff9adf424 100644
--- a/packages/core/storage-js/test/storageBucketApi.test.ts
+++ b/packages/core/storage-js/test/storageBucketApi.test.ts
@@ -60,6 +60,7 @@ describe('Bucket API Error Handling', () => {
         'http://localhost:1234/storage/v1',
         'support local host with port without modification',
       ],
+      ['http://localhost:1234', 'http://localhost:1234', 'support local host only with port'],
     ]
 
     urlTestCases.forEach(([inputUrl, expectUrl, description]) => {