nodejs
diff --git a/‎lib/internal/streams/pipeline.js‎
Lines changed: 3 additions & 1 deletion b/‎lib/internal/streams/pipeline.js‎
Lines changed: 3 additions & 1 deletion
diff --git a/‎test/parallel/test-stream-pipeline.js‎
Lines changed: 15 additions & 0 deletions b/‎test/parallel/test-stream-pipeline.js‎
Lines changed: 15 additions & 0 deletions
@@ -265,7 +265,9 @@ function pipelineImpl(streams, callback, opts) {
           then.call(ret,
                     (val) => {
                       value = val;
-                      pt.write(val);
+                      if (val != null) {
+                        pt.write(val);
+                      }
                       if (end) {
                         pt.end();
                       }
 
@@ -1511,3 +1511,18 @@ const tsp = require('timers/promises');
     assert.strictEqual(s.destroyed, true);
   }));
 }
+
+{
+  const s = new PassThrough({ objectMode: true });
+  pipeline(async function*() {
+    await Promise.resolve();
+    yield 'hello';
+    yield 'world';
+    yield 'world';
+  }, s, async function(source) {
+    return null;
+  }, common.mustCall((err, val) => {
+    assert.strictEqual(err, undefined);
+    assert.strictEqual(val, null);
+  }));
+}