diff --git a/ndn-cpp/name.cpp b/ndn-cpp/name.cpp
index 6f42635..22476af 100644
--- a/ndn-cpp/name.cpp
+++ b/ndn-cpp/name.cpp
@@ -119,7 +119,7 @@
   
   ndn_Error error;
   if ((error = ndn_NameComponent_toNumberWithMarker(&componentStruct, marker, &result)))
-    throw std::runtime_error(ndn_getErrorString(error));
+    throw runtime_error(ndn_getErrorString(error));
     
   return result;
 }
@@ -282,7 +282,7 @@
   return *this;
 }
 
-std::string 
+string 
 Name::toUri() const
 {
   if (components_.size() == 0)