diff --git a/servers/linux-outloud/langswitch.cpp b/servers/linux-outloud/langswitch.cpp

index 5544533..41e7fc0 100644

--- a/servers/linux-outloud/langswitch.cpp

+++ b/servers/linux-outloud/langswitch.cpp

@@ -159,7 +159,7 @@ enum ECILanguageDialect initLanguage(Tcl_Interp *interp,

 const char *getAnnotation(Tcl_Interp *interp, int *theIndex) {

   const char *code = NULL;

-  const char *aInfo = Tcl_GetVar2(interp, "langsynth", "current", 0);

+  const char *aInfo = (char *)Tcl_GetVar2(interp, "langsynth", "current", 0);

   if (aInfo) {

     *theIndex = atoi(aInfo);

-- 

2.21.0