diff --git a/test/for_each.cpp b/test/for_each.cpp
index 89c710a..17a2a48 100644
--- a/test/for_each.cpp
+++ b/test/for_each.cpp
@@ -79,7 +79,7 @@ int main()
 
     mpl::for_each< numbers >(value_printer(std::cout));
     
-    for (int i = 0; i < v.size(); ++i)
+    for (unsigned i = 0; i < v.size(); ++i)
         assert(v[i] == i);
 
     return 0;
diff --git a/test/lambda.cpp b/test/lambda.cpp
index 3817b0f..6b34278 100644
--- a/test/lambda.cpp
+++ b/test/lambda.cpp
@@ -44,7 +44,7 @@ int main()
                     mpl::not_< boost::is_same<_1, char> >
                   , mpl::not_< boost::is_float<_1> >
                   >
-            , mpl::greater< mpl::sizeof_<_1>, mpl::int_<8> >
+            , mpl::greater< mpl::sizeof_<_1>, mpl::size_t<8> >
             >
         >::type f1;