diff --git a/libcxx/test/std/utilities/variant/variant.variant/variant.assign/T.pass.cpp b/libcxx/test/std/utilities/variant/variant.variant/variant.assign/T.pass.cpp
--- a/libcxx/test/std/utilities/variant/variant.variant/variant.assign/T.pass.cpp
+++ b/libcxx/test/std/utilities/variant/variant.variant/variant.assign/T.pass.cpp
@@ -211,6 +211,16 @@
     assert(v.index() == 1);
     assert(std::get<1>(v) == nullptr);
   }
+  {
+    std::variant<bool volatile, int> v = 42;
+    v = false;
+    assert(v.index() == 0);
+    assert(!std::get<0>(v));
+    bool lvt = true;
+    v = lvt;
+    assert(v.index() == 0);
+    assert(std::get<0>(v));
+  }
 #if !defined(TEST_VARIANT_HAS_NO_REFERENCES)
   {
     using V = std::variant<int &, int &&, long>;