diff --git a/test/parallel/test-console-log-stdio-broken-dest.js b/test/parallel/test-console-log-stdio-broken-dest.js
index d29e8ee5173be7..bdd1b79427453a 100644
--- a/test/parallel/test-console-log-stdio-broken-dest.js
+++ b/test/parallel/test-console-log-stdio-broken-dest.js
@@ -15,7 +15,7 @@ const stream = new Writable({
 });
 const myConsole = new Console(stream, stream);
 
-process.on('warning', common.mustNotCall);
+process.on('warning', common.mustNotCall());
 
 stream.cork();
 for (let i = 0; i < EventEmitter.defaultMaxListeners + 1; i++) {
diff --git a/test/parallel/test-http2-https-fallback.js b/test/parallel/test-http2-https-fallback.js
index 16879b05f12c8d..2e85b8901781bb 100644
--- a/test/parallel/test-http2-https-fallback.js
+++ b/test/parallel/test-http2-https-fallback.js
@@ -141,7 +141,7 @@ function onSession(session, next) {
 
     function testNoTls() {
       // HTTP/1.1 client
-      get(Object.assign(parse(origin), clientOptions), common.mustNotCall)
+      get(Object.assign(parse(origin), clientOptions), common.mustNotCall())
         .on('error', common.mustCall(cleanup))
         .on('error', common.mustCall(testWrongALPN))
         .end();
diff --git a/test/parallel/test-stream-readable-reading-readingMore.js b/test/parallel/test-stream-readable-reading-readingMore.js
index 968bf5c63ae0d3..5e39c86dcba567 100644
--- a/test/parallel/test-stream-readable-reading-readingMore.js
+++ b/test/parallel/test-stream-readable-reading-readingMore.js
@@ -124,7 +124,7 @@ const Readable = require('stream').Readable;
   assert.strictEqual(state.reading, false);
   assert.strictEqual(state.readingMore, false);
 
-  const onReadable = common.mustNotCall;
+  const onReadable = common.mustNotCall();
 
   readable.on('readable', onReadable);
 
diff --git a/test/parallel/test-zlib-invalid-input.js b/test/parallel/test-zlib-invalid-input.js
index 67793984a991c5..7aa44dfe7090a1 100644
--- a/test/parallel/test-zlib-invalid-input.js
+++ b/test/parallel/test-zlib-invalid-input.js
@@ -53,7 +53,7 @@ nonStringInputs.forEach(common.mustCall((input) => {
 
 unzips.forEach(common.mustCall((uz, i) => {
   uz.on('error', common.mustCall());
-  uz.on('end', common.mustNotCall);
+  uz.on('end', common.mustNotCall());
 
   // This will trigger error event
   uz.write('this is not valid compressed data.');
diff --git a/test/parallel/test-zlib-sync-no-event.js b/test/parallel/test-zlib-sync-no-event.js
index 479aa1c411b096..e7f25c8476ee4e 100644
--- a/test/parallel/test-zlib-sync-no-event.js
+++ b/test/parallel/test-zlib-sync-no-event.js
@@ -7,12 +7,12 @@ const message = 'Come on, Fhqwhgads.';
 const buffer = Buffer.from(message);
 
 const zipper = new zlib.Gzip();
-zipper.on('close', common.mustNotCall);
+zipper.on('close', common.mustNotCall());
 
 const zipped = zipper._processChunk(buffer, zlib.constants.Z_FINISH);
 
 const unzipper = new zlib.Gunzip();
-unzipper.on('close', common.mustNotCall);
+unzipper.on('close', common.mustNotCall());
 
 const unzipped = unzipper._processChunk(zipped, zlib.constants.Z_FINISH);
 assert.notStrictEqual(zipped.toString(), message);