diff --git a/src/lp/packet.hpp b/src/lp/packet.hpp
index aa77a4f..bc35122 100644
--- a/src/lp/packet.hpp
+++ b/src/lp/packet.hpp
@@ -55,7 +55,7 @@
   /**
    * \brief encode packet into wire format
    */
-  const Block
+  Block
   wireEncode() const;
 
   /**