diff --git a/include/chaiscript/dispatchkit/function_call_detail.hpp b/include/chaiscript/dispatchkit/function_call_detail.hpp
index e6cd4654..e86bb251 100644
--- a/include/chaiscript/dispatchkit/function_call_detail.hpp
+++ b/include/chaiscript/dispatchkit/function_call_detail.hpp
@@ -81,7 +81,7 @@ namespace chaiscript
 
           Ret operator()(Param...param)
           {
-            return Function_Caller_Ret<Ret, std::is_arithmetic<Ret>::value>::call(m_funcs, { 
+            return Function_Caller_Ret<Ret, std::is_arithmetic<Ret>::value && !std::is_same<Ret, bool>::value>::call(m_funcs, { 
                 (std::is_reference<Param>::value&&!(std::is_same<chaiscript::Boxed_Value, typename std::remove_const<typename std::remove_reference<Param>::type>::type>::value))?Boxed_Value(std::ref(param)):Boxed_Value(param)... 
                 }, m_conversions