1 files changed, 2 insertions, 0 deletions
diff --git a/src/lib.rs b/src/lib.rs
index 6c89dec..3b816f9 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -2115,6 +2115,8 @@ fn decode_packet<
         current_word += 1;
     }
 
+    opcode_check!(extender.is_none());
+
     handler.on_decode_end();
 
     Ok(())