diff --git a/tolua++-1.0.93/src/lib/tolua_is.c b/tolua++-1.0.93/src/lib/tolua_is.c
index add337d19..c486b271e 100644
--- a/tolua++-1.0.93/src/lib/tolua_is.c
+++ b/tolua++-1.0.93/src/lib/tolua_is.c
@@ -116,7 +116,7 @@ TOLUA_API void tolua_error (lua_State* L, const char* msg, tolua_Error* err)
 }
 
 /* the equivalent of lua_is* for usertable */
-static  int lua_isusertable (lua_State* L, int lo, const const char* type)
+static int lua_isusertable (lua_State* L, int lo, const char* type)
 {
 	int r = 0;
 	if (lo < 0) lo = lua_gettop(L)+lo+1;