diff --git a/lib/zlib.js b/lib/zlib.js
index a707d817bbc8b5..d25b98e1ba047e 100644
--- a/lib/zlib.js
+++ b/lib/zlib.js
@@ -274,7 +274,7 @@ function ZlibBase(opts, mode, handle, { flush, finishFlush, fullFlush }) {
   this._defaultFlushFlag = flush;
   this._finishFlushFlag = finishFlush;
   this._defaultFullFlushFlag = fullFlush;
-  this.once('end', _close.bind(null, this));
+  this.once('end', this.close);
   this._info = opts && opts.info;
 }
 ObjectSetPrototypeOf(ZlibBase.prototype, Transform.prototype);
diff --git a/test/parallel/test-zlib.js b/test/parallel/test-zlib.js
index 509dcd2207e83e..0d21cf6cc29e58 100644
--- a/test/parallel/test-zlib.js
+++ b/test/parallel/test-zlib.js
@@ -171,7 +171,8 @@ zlib.createDeflateRaw({ windowBits: 8 });
       .pipe(zlib.createInflateRaw({ windowBits: 8 }))
       .on('data', (chunk) => reinflated.push(chunk))
       .on('end', common.mustCall(
-        () => assert(Buffer.concat(raw).equals(Buffer.concat(reinflated)))));
+        () => assert(Buffer.concat(raw).equals(Buffer.concat(reinflated)))))
+      .on('close', common.mustCall(1));
 }
 
 // For each of the files, make sure that compressing and