diff --git a/copy_images.tf b/copy_images.tf
index 7efe5e5..48bfc4c 100644
--- a/copy_images.tf
+++ b/copy_images.tf
@@ -54,8 +54,8 @@ module "images" {
   force_delete                = true
   lifecycle_policy_keep_count = 5
 
-  source_username = local.image_config.source_username || ""
-  source_password = local.image_config.source_password || ""
+  source_username = try(local.image_config.source_username, data.aws_ecr_authorization_token.token.user_name)
+  source_password = try(local.image_config.source_password, data.aws_ecr_authorization_token.token.password)
 
   destination_username = data.aws_ecr_authorization_token.token.user_name
   destination_password = data.aws_ecr_authorization_token.token.password