diff --git a/expat/tests/runtests.c b/expat/tests/runtests.c
index c5510835..4cc94390 100644
--- a/expat/tests/runtests.c
+++ b/expat/tests/runtests.c
@@ -6531,7 +6531,7 @@ record_element_end_handler(void *userData,
 {
     CharData *storage = (CharData *)userData;
 
-    CharData_AppendXMLChars(storage, "/", 1);
+    CharData_AppendXMLChars(storage, XCS("/"), 1);
     CharData_AppendXMLChars(storage, name, -1);
 }