diff --git a/include/boost/utility/result_of.hpp b/include/boost/utility/result_of.hpp
index d8baa3e..78168fa 100644
--- a/include/boost/utility/result_of.hpp
+++ b/include/boost/utility/result_of.hpp
@@ -81,8 +81,8 @@ struct result_of_nested_result : F::template result<FArgs>
 template<typename F, typename FArgs>
 struct result_of_impl<F, FArgs, false>
   : mpl::if_<is_function_with_no_args<FArgs>,
-	     result_of_void_impl<F>,
-	     result_of_nested_result<F, FArgs> >::type
+             result_of_void_impl<F>,
+             result_of_nested_result<F, FArgs> >::type
 {};
 
 } // end namespace detail
diff --git a/swap/test/std_bitset.cpp b/swap/test/std_bitset.cpp
index 4b9fbae..d8d69e7 100644
--- a/swap/test/std_bitset.cpp
+++ b/swap/test/std_bitset.cpp
@@ -19,7 +19,7 @@ int test_main(int, char*[])
   typedef std::bitset<8> bitset_type;
   const bitset_type initial_value1 = 1ul;
   const bitset_type initial_value2 = 2ul;
-	
+
   bitset_type object1 = initial_value1;
   bitset_type object2 = initial_value2;
 
diff --git a/swap/test/swap_test_class.hpp b/swap/test/swap_test_class.hpp
index 8cf1fe9..a25dbbd 100644
--- a/swap/test/swap_test_class.hpp
+++ b/swap/test/swap_test_class.hpp
@@ -12,7 +12,7 @@
 
 class swap_test_class
 {
-  int m_data;	
+  int m_data;
 public:
   explicit swap_test_class(int arg = 0)
   :