diff --git a/jetty-websocket/websocket-common/src/main/java/org/eclipse/jetty/websocket/common/extensions/compress/ByteAccumulator.java b/jetty-websocket/websocket-common/src/main/java/org/eclipse/jetty/websocket/common/extensions/compress/ByteAccumulator.java
index 53362ba36cb9..b76f7595129f 100644
--- a/jetty-websocket/websocket-common/src/main/java/org/eclipse/jetty/websocket/common/extensions/compress/ByteAccumulator.java
+++ b/jetty-websocket/websocket-common/src/main/java/org/eclipse/jetty/websocket/common/extensions/compress/ByteAccumulator.java
@@ -96,6 +96,7 @@ public void transferTo(ByteBuffer buffer)
     
     void recycle() {
         index = 0;
+        length = 0;
         prevChunks = nextChunks;
         nextChunks = new ArrayList<>();
     }