diff --git a/test/iterator_range.cpp b/test/iterator_range.cpp
index 152ac76..9f8d7b6 100755
--- a/test/iterator_range.cpp
+++ b/test/iterator_range.cpp
@@ -26,7 +26,7 @@
 
 using namespace boost;
 using namespace std;
-    
+
 void check_reference_type();
 
 void check_iterator_range()