diff --git a/src/config/test/config.spec.ts b/src/config/test/config.spec.ts
index eaeea74dd8..3ecb2276fa 100644
--- a/src/config/test/config.spec.ts
+++ b/src/config/test/config.spec.ts
@@ -516,10 +516,10 @@ describe('Config', () => {
 
   beforeEach(() => {
     config = new Config();
+    registerModeConfigs(config)();
     qp = new QueryParams('');
     platform = new Platform();
     platform.setPlatformConfigs(PLATFORM_CONFIGS);
-    registerModeConfigs(config);
   });
 
 });
diff --git a/src/platform/test/platform.spec.ts b/src/platform/test/platform.spec.ts
index a9bdb5c9d7..1ea816d7fe 100644
--- a/src/platform/test/platform.spec.ts
+++ b/src/platform/test/platform.spec.ts
@@ -331,7 +331,7 @@ describe('Platform', () => {
   beforeEach(() => {
     platform = new Platform();
     platform.setPlatformConfigs(PLATFORM_CONFIGS);
-    registerModeConfigs(new Config());
+    registerModeConfigs(new Config())();
   });
 
 });