diff --git a/developer/src/kmcmplib/src/CompilerInterfaces.cpp b/developer/src/kmcmplib/src/CompilerInterfaces.cpp
index 566e7a4b6c..71d72ac216 100644
--- a/developer/src/kmcmplib/src/CompilerInterfaces.cpp
+++ b/developer/src/kmcmplib/src/CompilerInterfaces.cpp
@@ -1,4 +1,5 @@
 #include "pch.h"
+#include <clocale>
 #include <kmcmplibapi.h>
 #include <kmn_compiler_errors.h>
 #include "kmcmplib.h"