diff --git a/src/encoding/block.hpp b/src/encoding/block.hpp
index eef9b3d..388bac5 100644
--- a/src/encoding/block.hpp
+++ b/src/encoding/block.hpp
@@ -385,7 +385,7 @@
 
 
 inline void
-Block::push_back(const Block &element)
+Block::push_back(const Block& element)
 {
   resetWire();
   m_subBlocks.push_back(element);