diff --git a/src/hubextensions.test.ts b/src/hubextensions.test.ts
index 152f5a7d..f2435fe5 100644
--- a/src/hubextensions.test.ts
+++ b/src/hubextensions.test.ts
@@ -7,9 +7,14 @@ import profiler from './../build/Release/cpu_profiler';
 
 function makeTransactionMock(): Transaction {
   return {
+    metadata: {},
+    tags: {},
     finish() {
       return;
     },
+    setTag(key: string, value: any) {
+      this.tags[key] = value;
+    },
     setMetadata(metadata: Partial<TransactionMetadata>) {
       this.metadata = { ...metadata } as TransactionMetadata;
     }
diff --git a/src/utils.test.ts b/src/utils.test.ts
index 32ed25b4..3ebb6188 100644
--- a/src/utils.test.ts
+++ b/src/utils.test.ts
@@ -120,7 +120,6 @@ describe('createProfilingEventEnvelope', () => {
       undefined
     );
 
-    // @ts-expect-error header type inference is broken
     expect(envelope[0].sdk).toBe(undefined);
   });
 
@@ -139,7 +138,6 @@ describe('createProfilingEventEnvelope', () => {
       'tunnel'
     );
 
-    // @ts-expect-error header type inference is broken
     expect(envelope[0].dsn).toBe('https://publicKey@sentry.io:9000/path/123');
   });