diff --git a/tests/span_compile_only.cpp b/tests/span_compile_only.cpp
index 6ddf7d3..5c9da6d 100644
--- a/tests/span_compile_only.cpp
+++ b/tests/span_compile_only.cpp
@@ -48,8 +48,8 @@ bool foo()
         span<const int> cs;
         ret = ret || (cs.size() == 0 && cs.data() == nullptr);
 
-        // span<int> s2{};
-        // ret = ret || (s2.size() == 0 && s2.data() == nullptr);
+        span<int> s2{};
+        ret = ret || (s2.size() == 0 && s2.data() == nullptr);
 
         return ret;
     }