1 files changed, 3 insertions, 2 deletions
diff --git a/lib/libcxx/src/experimental/memory_resource.cpp b/lib/libcxx/src/experimental/memory_resource.cpp
index a3b64cc8b49..7f0052f2b50 100644
--- a/lib/libcxx/src/experimental/memory_resource.cpp
+++ b/lib/libcxx/src/experimental/memory_resource.cpp
@@ -33,8 +33,9 @@ protected:
     virtual void* do_allocate(size_t __size, size_t __align)
         { return _VSTD::__libcpp_allocate(__size, __align); /* FIXME */}
 
-    virtual void do_deallocate(void * __p, size_t, size_t __align)
-        { _VSTD::__libcpp_deallocate(__p, __align); /* FIXME */ }
+    virtual void do_deallocate(void* __p, size_t __n, size_t __align) {
+      _VSTD::__libcpp_deallocate(__p, __n, __align); /* FIXME */
+    }
 
     virtual bool do_is_equal(memory_resource const & __other) const _NOEXCEPT
         { return &__other == this; }