1 files changed, 2 insertions, 2 deletions
diff --git a/cpp/src/FreezeScript/Functions.cpp b/cpp/src/FreezeScript/Functions.cpp
index fe5a3192d77..69a7ab8ae46 100644
--- a/cpp/src/FreezeScript/Functions.cpp
+++ b/cpp/src/FreezeScript/Functions.cpp
@@ -10,6 +10,7 @@
 #include <FreezeScript/Functions.h>
 #include <FreezeScript/Util.h>
 #include <IceUtil/UUID.h>
+#include <IceUtil/StringUtil.h>
 
 using namespace std;
 
@@ -177,8 +178,7 @@ FreezeScript::invokeGlobalFunction(const Ice::CommunicatorPtr& communicator, con
         {
             errorReporter->error("lowercase() requires a string argument");
         }
-        string val = str->stringValue();
-        transform(val.begin(), val.end(), val.begin(), ::tolower);
+        string val = IceUtilInternal::toLower(str->stringValue());
         result = factory->createString(val, false);
         return true;
     }