diff --git a/src/main/java/io/netty/buffer/api/CompositeBuffer.java b/src/main/java/io/netty/buffer/api/CompositeBuffer.java
index 2b45ada..3824b58 100644
--- a/src/main/java/io/netty/buffer/api/CompositeBuffer.java
+++ b/src/main/java/io/netty/buffer/api/CompositeBuffer.java
@@ -1351,7 +1351,7 @@ public final class CompositeBuffer extends RcSupport<Buffer, CompositeBuffer> im
                 for (int i = 0; i < sends.length; i++) {
                     received[i] = sends[i].receive();
                 }
-                var composite = new CompositeBuffer(allocator, received, drop, true);
+                var composite = new CompositeBuffer(allocator, received, drop, false);
                 composite.readOnly = readOnly;
                 drop.attach(composite);
                 return composite;
diff --git a/src/test/java/io/netty/buffer/api/BufferReferenceCountingTest.java b/src/test/java/io/netty/buffer/api/BufferReferenceCountingTest.java
index 010abd3..15338b5 100644
--- a/src/test/java/io/netty/buffer/api/BufferReferenceCountingTest.java
+++ b/src/test/java/io/netty/buffer/api/BufferReferenceCountingTest.java
@@ -350,7 +350,6 @@ public class BufferReferenceCountingTest extends BufferTestSupport {
         }
     }
 
-    @Disabled // TODO
     @ParameterizedTest
     @MethodSource("allocators")
     public void sliceMustBecomeOwnedOnSourceBufferClose(Fixture fixture) {