diff --git a/ndn-cpp/key.cpp b/ndn-cpp/key.cpp
index 7548968..6cdae60 100644
--- a/ndn-cpp/key.cpp
+++ b/ndn-cpp/key.cpp
@@ -10,7 +10,7 @@
 
 namespace ndn {
 
-void KeyLocator::get(struct ndn_KeyLocator &keyLocatorStruct) const 
+void KeyLocator::get(struct ndn_KeyLocator& keyLocatorStruct) const 
 {
   keyLocatorStruct.type = type_;
   
@@ -24,7 +24,7 @@
   keyLocatorStruct.keyNameType = keyNameType_;
 }
 
-void KeyLocator::set(const struct ndn_KeyLocator &keyLocatorStruct)
+void KeyLocator::set(const struct ndn_KeyLocator& keyLocatorStruct)
 {
   type_ = keyLocatorStruct.type;
   setVector(keyData_, keyLocatorStruct.keyData, keyLocatorStruct.keyDataLength);