diff --git a/ndn-cpp/face.cpp b/ndn-cpp/face.cpp
index a2503fe..9b24dda 100644
--- a/ndn-cpp/face.cpp
+++ b/ndn-cpp/face.cpp
@@ -9,7 +9,7 @@
 
 namespace ndn {
   
-void Face::expressInterest(const Name &name, const Interest *interestTemplate, const OnData &onData, const OnTimeout &onTimeout)
+void Face::expressInterest(const Name& name, const Interest *interestTemplate, const OnData& onData, const OnTimeout& onTimeout)
 {
   if (interestTemplate)
     node_.expressInterest(Interest