diff --git a/test/mixin_test.cpp b/test/mixin_test.cpp
index f823323..61c7200 100644
--- a/test/mixin_test.cpp
+++ b/test/mixin_test.cpp
@@ -20,7 +20,7 @@
 #include <boost/function.hpp>
 
 struct id_mixin
-{	
+{       
   id_mixin(const id_mixin& rhs) : id(rhs.id) {}
   id_mixin& operator=(const id_mixin& rhs){id = rhs.id; return *this;}
   id_mixin(int i = 0){ id = i;}
@@ -49,12 +49,12 @@ int test_main(int, char*[])
 
   f.id = 21;    
   BOOST_TEST(f.id == 21);
-	  
+          
   boost::swap(f,g);  
   BOOST_TEST(f.id == 7);
   BOOST_TEST(g.id == 21);
 
-  g = f;	  
+  g = f;          
   BOOST_TEST(g.id == 7);  
   return 0;
 }