diff --git a/packages/core-compat-api/src/collectLegacyRoutes.tsx b/packages/core-compat-api/src/collectLegacyRoutes.tsx
index 9cc23b8c29..c5cb13b6e1 100644
--- a/packages/core-compat-api/src/collectLegacyRoutes.tsx
+++ b/packages/core-compat-api/src/collectLegacyRoutes.tsx
@@ -90,7 +90,7 @@ function makeRoutingShimExtension(options: {
       coreExtensionData.routeRef.optional(),
     ],
     *factory() {
-      if (routePath) {
+      if (routePath !== undefined) {
         yield coreExtensionData.routePath(routePath);
       }
 
diff --git a/packages/frontend-app-api/src/routing/extractRouteInfoFromAppNode.test.ts b/packages/frontend-app-api/src/routing/extractRouteInfoFromAppNode.test.ts
index 1fc899a906..51d26ec51b 100644
--- a/packages/frontend-app-api/src/routing/extractRouteInfoFromAppNode.test.ts
+++ b/packages/frontend-app-api/src/routing/extractRouteInfoFromAppNode.test.ts
@@ -63,7 +63,7 @@ function createTestExtension(options: {
         yield coreExtensionData.routePath(options.path);
       }
 
-      if (options.routeRef !== undefined) {
+      if (options.routeRef) {
         yield coreExtensionData.routeRef(options.routeRef);
       }
 
diff --git a/packages/frontend-test-utils/src/app/createExtensionTester.test.tsx b/packages/frontend-test-utils/src/app/createExtensionTester.test.tsx
index 5102649059..14ffd05ada 100644
--- a/packages/frontend-test-utils/src/app/createExtensionTester.test.tsx
+++ b/packages/frontend-test-utils/src/app/createExtensionTester.test.tsx
@@ -395,9 +395,7 @@ describe('createExtensionTester', () => {
 
     const tester = createExtensionTester(extension).add(extension2);
 
-    // @ts-expect-error
     expect(tester.query(extension).get(stringDataRef)).toBe('nest-test-text');
-    // @ts-expect-error
     expect(tester.query(extension2).get(stringDataRef)).toBe('test-text');
     // @ts-expect-error
     expect(tester.query(extension).input('input').data(stringDataRef)).toBe(
@@ -426,7 +424,6 @@ describe('createExtensionTester', () => {
       inputs: { input: 'test-text' },
     });
 
-    // @ts-expect-error
     expect(tester.query(extension).get(stringDataRef)).toBe('nest-test-text');
   });
 });