diff --git a/sol/function.hpp b/sol/function.hpp
index 2707e97b..f037fd07 100644
--- a/sol/function.hpp
+++ b/sol/function.hpp
@@ -63,7 +63,7 @@ public:
 
     template<typename... Args>
     void operator()(Args&&... args) {
-	    call<>(std::forward<Args>(args)...);
+        call<>(std::forward<Args>(args)...);
     }
     
     template<typename... Ret, typename... Args>
diff --git a/sol/traits.hpp b/sol/traits.hpp
index 26d71634..994dff81 100644
--- a/sol/traits.hpp
+++ b/sol/traits.hpp
@@ -73,58 +73,58 @@ struct function_traits;
 
 template<typename T, typename R, typename... Args>
 struct function_traits<R(T::*)(Args...)> {
-	static const std::size_t arity = sizeof...(Args);
-	static const bool is_member_function = true;
-	typedef std::tuple<Args...> arg_tuple_type;
-	typedef types<Args...> args_type;
-	typedef R(T::* function_pointer_type)(Args...);
-	typedef typename std::remove_pointer<function_pointer_type>::type function_type;
-	typedef R(*free_function_pointer_type)(Args...);
-	typedef R return_type;
-	template<std::size_t i>
-	using arg = typename std::tuple_element<i, arg_tuple_type>::type;
+    static const std::size_t arity = sizeof...(Args);
+    static const bool is_member_function = true;
+    typedef std::tuple<Args...> arg_tuple_type;
+    typedef types<Args...> args_type;
+    typedef R(T::* function_pointer_type)(Args...);
+    typedef typename std::remove_pointer<function_pointer_type>::type function_type;
+    typedef R(*free_function_pointer_type)(Args...);
+    typedef R return_type;
+    template<std::size_t i>
+    using arg = typename std::tuple_element<i, arg_tuple_type>::type;
 };
 
 template<typename T, typename R, typename... Args>
 struct function_traits<R(T::*)(Args...) const> {
-	static const std::size_t arity = sizeof...(Args);
-	static const bool is_member_function = true;
-	typedef std::tuple<Args...> arg_tuple_type;
-	typedef types<Args...> args_type;
-	typedef R(T::* function_pointer_type)(Args...);
-	typedef typename std::remove_pointer<function_pointer_type>::type function_type;
-	typedef R(*free_function_pointer_type)(Args...);
-	typedef R return_type;
-	template<std::size_t i>
-	using arg = typename std::tuple_element<i, arg_tuple_type>::type;
+    static const std::size_t arity = sizeof...(Args);
+    static const bool is_member_function = true;
+    typedef std::tuple<Args...> arg_tuple_type;
+    typedef types<Args...> args_type;
+    typedef R(T::* function_pointer_type)(Args...);
+    typedef typename std::remove_pointer<function_pointer_type>::type function_type;
+    typedef R(*free_function_pointer_type)(Args...);
+    typedef R return_type;
+    template<std::size_t i>
+    using arg = typename std::tuple_element<i, arg_tuple_type>::type;
 };
 
 template<typename R, typename... Args>
 struct function_traits<R(Args...)> {
-	static const std::size_t arity = sizeof...(Args);
-	static const bool is_member_function = false;
-	typedef std::tuple<Args...> arg_tuple_type;
-	typedef types<Args...> args_type;
-	typedef R(function_type)(Args...);
-	typedef R(*function_pointer_type)(Args...);
-	typedef R(*free_function_pointer_type)(Args...);
-	typedef R return_type;
-	template<std::size_t i>
-	using arg = typename std::tuple_element<i, arg_tuple_type>::type;
+    static const std::size_t arity = sizeof...(Args);
+    static const bool is_member_function = false;
+    typedef std::tuple<Args...> arg_tuple_type;
+    typedef types<Args...> args_type;
+    typedef R(function_type)(Args...);
+    typedef R(*function_pointer_type)(Args...);
+    typedef R(*free_function_pointer_type)(Args...);
+    typedef R return_type;
+    template<std::size_t i>
+    using arg = typename std::tuple_element<i, arg_tuple_type>::type;
 };
 
 template<typename R, typename... Args>
 struct function_traits<R(*)(Args...)> {
-	static const std::size_t arity = sizeof...(Args);
-	static const bool is_member_function = false;
-	typedef std::tuple<Args...> arg_tuple_type;
-	typedef types<Args...> args_type;
-	typedef R(function_type)(Args...);
-	typedef R(*function_pointer_type)(Args...);
-	typedef R(*free_function_pointer_type)(Args...);
-	typedef R return_type;
-	template<std::size_t i>
-	using arg = typename std::tuple_element<i, arg_tuple_type>::type;
+    static const std::size_t arity = sizeof...(Args);
+    static const bool is_member_function = false;
+    typedef std::tuple<Args...> arg_tuple_type;
+    typedef types<Args...> args_type;
+    typedef R(function_type)(Args...);
+    typedef R(*function_pointer_type)(Args...);
+    typedef R(*free_function_pointer_type)(Args...);
+    typedef R return_type;
+    template<std::size_t i>
+    using arg = typename std::tuple_element<i, arg_tuple_type>::type;
 };
 } // sol