1 files changed, 3 insertions, 2 deletions
diff --git a/test/std/containers/associative/multiset/insert_initializer_list.pass.cpp b/test/std/containers/associative/multiset/insert_initializer_list.pass.cpp
index 7b82cea5fbea..590c66801f99 100644
--- a/test/std/containers/associative/multiset/insert_initializer_list.pass.cpp
+++ b/test/std/containers/associative/multiset/insert_initializer_list.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <set>
 #include <cassert>
+#include <cstddef>
 
 #include "min_allocator.h"
 
@@ -27,7 +28,7 @@ int main()
     C m = {10, 8};
     m.insert({1, 2, 3, 4, 5, 6});
     assert(m.size() == 8);
-    assert(distance(m.begin(), m.end()) == m.size());
+    assert(static_cast<std::size_t>(distance(m.begin(), m.end())) == m.size());
     C::const_iterator i = m.cbegin();
     assert(*i == V(1));
     assert(*++i == V(2));
@@ -46,7 +47,7 @@ int main()
     C m = {10, 8};
     m.insert({1, 2, 3, 4, 5, 6});
     assert(m.size() == 8);
-    assert(distance(m.begin(), m.end()) == m.size());
+    assert(static_cast<std::size_t>(distance(m.begin(), m.end())) == m.size());
     C::const_iterator i = m.cbegin();
     assert(*i == V(1));
     assert(*++i == V(2));