diff --git a/internal/proxy/database_interceptor.go b/internal/proxy/database_interceptor.go
index 2b12a9fe6b..f3c32d854f 100644
--- a/internal/proxy/database_interceptor.go
+++ b/internal/proxy/database_interceptor.go
@@ -275,6 +275,11 @@ func fillDatabase(ctx context.Context, req interface{}) (context.Context, interf
 			r.DbName = GetCurDBNameFromContextOrDefault(ctx)
 		}
 		return ctx, r
+	case *milvuspb.AddCollectionFieldRequest:
+		if r.DbName == "" {
+			r.DbName = GetCurDBNameFromContextOrDefault(ctx)
+		}
+		return ctx, r
 	default:
 	}
 	return ctx, req