diff --git a/java/client/src/org/openqa/selenium/remote/ErrorCodes.java b/java/client/src/org/openqa/selenium/remote/ErrorCodes.java
index 1771e55796439..1c5f5bc2c2a94 100644
--- a/java/client/src/org/openqa/selenium/remote/ErrorCodes.java
+++ b/java/client/src/org/openqa/selenium/remote/ErrorCodes.java
@@ -125,6 +125,7 @@ public class ErrorCodes {
         builder.put(pair.getValue(), pair.getKey());
       }
     }
+    builder.put("invalid session id", NO_SUCH_SESSION); // for W3C compatibility
     stateToStatus = builder.build();
   }