diff --git a/src/core/common/uri_facade_win.cpp b/src/core/common/uri_facade_win.cpp
index 1a807fb..2839ddf 100644
--- a/src/core/common/uri_facade_win.cpp
+++ b/src/core/common/uri_facade_win.cpp
@@ -19,7 +19,7 @@
 namespace Common
 {
 
-void Uri::Initialize(const char * uriString, std::size_t size)
+void Uri::Initialize(const std::string& uriString)
 {
   URL_COMPONENTS url = {0};
   url.dwStructSize = sizeof(url);
@@ -31,7 +31,7 @@ void Uri::Initialize(const char * uriString, std::size_t size)
 
   // TODO msdn says do not use this function in services and in server patforms. :(
   // TODO http://msdn.microsoft.com/en-us/library/windows/desktop/aa384376(v=vs.85).aspx
-  if (!InternetCrackUrl(uriString, size, options, &url))
+  if (!InternetCrackUrl(uriString.c_str(), uriString.size(), options, &url))
     {
       THROW_ERROR1(CannotParseUri, uriString);
     }