diff --git a/src/app/system/external-services/amazon-s3/amazon-s3.component.ts b/src/app/system/external-services/amazon-s3/amazon-s3.component.ts
index 1433606bd..2f2cff00e 100644
--- a/src/app/system/external-services/amazon-s3/amazon-s3.component.ts
+++ b/src/app/system/external-services/amazon-s3/amazon-s3.component.ts
@@ -54,7 +54,7 @@ export class AmazonS3Component implements OnInit {
   getConfigurationValue(configuration: any): string {
     const value = configuration.value;
     if (configuration.name === 's3_access_key' || configuration.name === 's3_secret_key') {
-      return value.replace(value.substr(1, value.length - 3), value.substr(1, value.length - 3).replace(/./g, '*'));
+      return value ? value.replace(value.substr(1, value.length - 3), value.substr(1, value.length - 3).replace(/./g, '*')) : '';
     }
     return value;
   }