1 files changed, 1 insertions, 1 deletions
diff --git a/test/std/strings/basic.string/string.require/contiguous.pass.cpp b/test/std/strings/basic.string/string.require/contiguous.pass.cpp
index 49773fe491a22..1cc8e96e8cd48 100644
--- a/test/std/strings/basic.string/string.require/contiguous.pass.cpp
+++ b/test/std/strings/basic.string/string.require/contiguous.pass.cpp
@@ -22,7 +22,7 @@ template <class C>
 void test_contiguous ( const C &c )
 {
     for ( size_t i = 0; i < c.size(); ++i )
-        assert ( *(c.begin() + i) == *(std::addressof(*c.begin()) + i));
+        assert ( *(c.begin() + static_cast<typename C::difference_type>(i)) == *(std::addressof(*c.begin()) + i));
 }
 
 int main()