diff --git a/libcxx/test/std/containers/views/span.cons/initializer_list.pass.cpp b/libcxx/test/std/containers/views/span.cons/initializer_list.pass.cpp
index 914ad7861e6f7..bcb34a9f2e596 100644
--- a/libcxx/test/std/containers/views/span.cons/initializer_list.pass.cpp
+++ b/libcxx/test/std/containers/views/span.cons/initializer_list.pass.cpp
@@ -21,12 +21,12 @@ struct Sink {
     constexpr Sink(Sink*) {}
 };
 
-constexpr size_t count(std::span<const Sink> sp) {
+constexpr std::size_t count(std::span<const Sink> sp) {
     return sp.size();
 }
 
 template<int N>
-constexpr size_t countn(std::span<const Sink, N> sp) {
+constexpr std::size_t countn(std::span<const Sink, N> sp) {
     return sp.size();
 }