1 files changed, 1 insertions, 1 deletions
diff --git a/test/std/containers/sequences/vector.bool/copy_alloc.pass.cpp b/test/std/containers/sequences/vector.bool/copy_alloc.pass.cpp
index aa8646a9b819..56ffb7d52dd7 100644
--- a/test/std/containers/sequences/vector.bool/copy_alloc.pass.cpp
+++ b/test/std/containers/sequences/vector.bool/copy_alloc.pass.cpp
@@ -22,7 +22,7 @@ template <class C>
 void
 test(const C& x, const typename C::allocator_type& a)
 {
-    unsigned s = x.size();
+    typename C::size_type s = x.size();
     C c(x, a);
     LIBCPP_ASSERT(c.__invariants());
     assert(c.size() == s);