diff --git a/jetty-websocket/websocket-common/src/main/java/org/eclipse/jetty/websocket/common/Generator.java b/jetty-websocket/websocket-common/src/main/java/org/eclipse/jetty/websocket/common/Generator.java
index 64934fe9142..3112468b7b4 100644
--- a/jetty-websocket/websocket-common/src/main/java/org/eclipse/jetty/websocket/common/Generator.java
+++ b/jetty-websocket/websocket-common/src/main/java/org/eclipse/jetty/websocket/common/Generator.java
@@ -28,7 +28,7 @@ import org.eclipse.jetty.util.log.Logger;
 import org.eclipse.jetty.websocket.api.ProtocolException;
 import org.eclipse.jetty.websocket.api.WebSocketBehavior;
 import org.eclipse.jetty.websocket.api.WebSocketPolicy;
-import org.eclipse.jetty.websocket.common.extensions.AbstractExtension;
+import org.eclipse.jetty.websocket.api.extensions.Extension;
 
 /**
  * Generating a frame in WebSocket land.
@@ -166,7 +166,7 @@ public class Generator
 
     }
 
-    public void configureFromExtensions(List<? extends AbstractExtension> exts)
+    public void configureFromExtensions(List<? extends Extension> exts)
     {
         // default
         this.rsv1InUse = false;
@@ -174,7 +174,7 @@ public class Generator
         this.rsv3InUse = false;
 
         // configure from list of extensions in use
-        for(AbstractExtension ext: exts)
+        for(Extension ext: exts)
         {
             if (ext.isRsv1User())
             {
diff --git a/jetty-websocket/websocket-common/src/main/java/org/eclipse/jetty/websocket/common/Parser.java b/jetty-websocket/websocket-common/src/main/java/org/eclipse/jetty/websocket/common/Parser.java
index d609b2e3287..b06e7d105ab 100644
--- a/jetty-websocket/websocket-common/src/main/java/org/eclipse/jetty/websocket/common/Parser.java
+++ b/jetty-websocket/websocket-common/src/main/java/org/eclipse/jetty/websocket/common/Parser.java
@@ -28,7 +28,7 @@ import org.eclipse.jetty.websocket.api.MessageTooLargeException;
 import org.eclipse.jetty.websocket.api.ProtocolException;
 import org.eclipse.jetty.websocket.api.WebSocketException;
 import org.eclipse.jetty.websocket.api.WebSocketPolicy;
-import org.eclipse.jetty.websocket.common.extensions.AbstractExtension;
+import org.eclipse.jetty.websocket.api.extensions.Extension;
 import org.eclipse.jetty.websocket.common.io.IncomingFrames;
 import org.eclipse.jetty.websocket.common.io.payload.CloseReasonValidator;
 import org.eclipse.jetty.websocket.common.io.payload.DeMaskProcessor;
@@ -115,7 +115,7 @@ public class Parser
         }
     }
 
-    public void configureFromExtensions(List<? extends AbstractExtension> exts)
+    public void configureFromExtensions(List<? extends Extension> exts)
     {
         // default
         this.rsv1InUse = false;
@@ -124,7 +124,7 @@ public class Parser
         this.isTextFrameValidated = true;
 
         // configure from list of extensions in use
-        for(AbstractExtension ext: exts)
+        for (Extension ext : exts)
         {
             if (ext.isRsv1User())
             {