diff --git a/angular.json b/angular.json
index 6bada0d..ecf97e1 100644
--- a/angular.json
+++ b/angular.json
@@ -25,7 +25,8 @@
             "production": {
               "tsConfig": "./tsconfig.lib.prod.json"
             }
-          }
+          },
+          "defaultConfiguration": "production"
         },
         "test": {
           "builder": "@angular-devkit/build-angular:karma",