diff --git a/jetty-websocket/websocket-javax-common/src/main/java/org/eclipse/jetty/websocket/javax/common/JavaxWebSocketFrameHandler.java b/jetty-websocket/websocket-javax-common/src/main/java/org/eclipse/jetty/websocket/javax/common/JavaxWebSocketFrameHandler.java
index 5ebbfa9dfef1..315ccbb53302 100644
--- a/jetty-websocket/websocket-javax-common/src/main/java/org/eclipse/jetty/websocket/javax/common/JavaxWebSocketFrameHandler.java
+++ b/jetty-websocket/websocket-javax-common/src/main/java/org/eclipse/jetty/websocket/javax/common/JavaxWebSocketFrameHandler.java
@@ -596,9 +596,10 @@ private void acceptMessage(Frame frame, Callback callback)
         }
 
         // Accept the payload into the message sink
-        activeMessageSink.accept(frame, callback);
+        MessageSink messageSink = activeMessageSink;
         if (frame.isFin())
             activeMessageSink = null;
+        messageSink.accept(frame, callback);
     }
 
     public void onPing(Frame frame, Callback callback)
diff --git a/jetty-websocket/websocket-jetty-common/src/main/java/org/eclipse/jetty/websocket/common/JettyWebSocketFrameHandler.java b/jetty-websocket/websocket-jetty-common/src/main/java/org/eclipse/jetty/websocket/common/JettyWebSocketFrameHandler.java
index e002794c012f..c882b20f4ea2 100644
--- a/jetty-websocket/websocket-jetty-common/src/main/java/org/eclipse/jetty/websocket/common/JettyWebSocketFrameHandler.java
+++ b/jetty-websocket/websocket-jetty-common/src/main/java/org/eclipse/jetty/websocket/common/JettyWebSocketFrameHandler.java
@@ -345,9 +345,10 @@ private void acceptMessage(Frame frame, Callback callback)
         }
 
         // Accept the payload into the message sink
-        activeMessageSink.accept(frame, callback);
+        MessageSink messageSink = activeMessageSink;
         if (frame.isFin())
             activeMessageSink = null;
+        messageSink.accept(frame, callback);
     }
 
     private void onBinaryFrame(Frame frame, Callback callback)