diff --git a/test/ctl/optional_test.cc b/test/ctl/optional_test.cc
index de75ebe30..49133e7d9 100644
--- a/test/ctl/optional_test.cc
+++ b/test/ctl/optional_test.cc
@@ -26,6 +26,8 @@
 // #include <string>
 // #define ctl std
 
+static int g = 0;
+
 int
 main()
 {
@@ -114,6 +116,13 @@ main()
             return 24;
     }
 
+    {
+        struct A { int* p = &g; A() {++*p; } };
+        ctl::optional<A> x;
+        if (g != 0)
+            return 25;
+    }
+
     CheckForMemoryLeaks();
     return 0;
 }