diff --git a/weed/s3api/auth_signature_v4.go b/weed/s3api/auth_signature_v4.go
index 783fbb4e9..4e22530d1 100644
--- a/weed/s3api/auth_signature_v4.go
+++ b/weed/s3api/auth_signature_v4.go
@@ -215,14 +215,14 @@ func (iam *IdentityAccessManagement) verifyV4Signature(r *http.Request, shouldCh
 			availableKeys = append(availableKeys, key)
 		}
 		iam.m.RUnlock()
-		
+
 		glog.Warningf("InvalidAccessKeyId: attempted key '%s' not found. Available keys: %d, Auth enabled: %v",
 			authInfo.AccessKey, len(availableKeys), iam.isAuthEnabled)
-		
+
 		if glog.V(2) && len(availableKeys) > 0 {
 			glog.V(2).Infof("Available access keys: %v", availableKeys)
 		}
-		
+
 		return nil, nil, "", nil, s3err.ErrInvalidAccessKeyID
 	}
 
@@ -563,10 +563,10 @@ func (iam *IdentityAccessManagement) doesPolicySignatureV4Match(formValues http.
 		iam.m.RLock()
 		availableKeyCount := len(iam.accessKeyIdent)
 		iam.m.RUnlock()
-		
+
 		glog.Warningf("InvalidAccessKeyId (POST policy): attempted key '%s' not found. Available keys: %d, Auth enabled: %v",
 			credHeader.accessKey, availableKeyCount, iam.isAuthEnabled)
-		
+
 		return s3err.ErrInvalidAccessKeyID
 	}