1 files changed, 2 insertions, 2 deletions
diff --git a/google/ads/googleads/v1/resources/domain_category.proto b/google/ads/googleads/v1/resources/domain_category.proto
index dee0b3cc7..1abb8f65d 100644
--- a/google/ads/googleads/v1/resources/domain_category.proto
+++ b/google/ads/googleads/v1/resources/domain_category.proto
@@ -42,12 +42,12 @@ message DomainCategory {
     pattern: "customers/{customer}/domainCategories/{domain_category}"
   };
 
-  // Immutable. The resource name of the domain category.
+  // Output only. The resource name of the domain category.
   // Domain category resource names have the form:
   //
   // `customers/{customer_id}/domainCategories/{campaign_id}~{category_base64}~{language_code}`
   string resource_name = 1 [
-    (google.api.field_behavior) = IMMUTABLE,
+    (google.api.field_behavior) = OUTPUT_ONLY,
     (google.api.resource_reference) = {
       type: "googleads.googleapis.com/DomainCategory"
     }