diff --git a/functions.cpp b/functions.cpp
index 4b5570c..1ebcf87 100644
--- a/functions.cpp
+++ b/functions.cpp
@@ -70,7 +70,7 @@ std::wstring LMsg( int id, ... ) {
 
     va_start( args, id );
     // _vscprintf doesn't count ending '\0'
-    int len = _vscprintf( local, args ) + 1;
+    int len = _vscwprintf( local, args ) + 1;
     va_end( args );
     wchar_t *text = new wchar_t[len];
     va_start( args, id );