diff --git a/daemon/table/cs.hpp b/daemon/table/cs.hpp
index c13e72c..9404015 100644
--- a/daemon/table/cs.hpp
+++ b/daemon/table/cs.hpp
@@ -30,7 +30,7 @@
    *  \return{ whether the Data is added }
    */
   bool
-  insert(const Data &data);
+  insert(const Data& data);
   
   /** \brief finds the best match Data for an Interest
    *  \return{ the best match, if any; otherwise 0 }