diff --git a/src/main/cpp/loggingevent.cpp b/src/main/cpp/loggingevent.cpp
index 690102025..a0f25c5e6 100644
--- a/src/main/cpp/loggingevent.cpp
+++ b/src/main/cpp/loggingevent.cpp
@@ -383,7 +383,7 @@ const LogString& LoggingEvent::getCurrentThreadUserName()
 #if LOG4CXX_HAS_THREAD_LOCAL
 	thread_local LogString thread_name;
 #else
-	static WideLife<LogString> thread_name = LOG4CXX_STR("(noname)");
+	static LogString thread_name = LOG4CXX_STR("(noname)");
 #endif
 	if( !thread_name.empty() ){
 		return thread_name;
diff --git a/src/test/cpp/asyncappendertestcase.cpp b/src/test/cpp/asyncappendertestcase.cpp
index 33b2f3717..6a960c57f 100644
--- a/src/test/cpp/asyncappendertestcase.cpp
+++ b/src/test/cpp/asyncappendertestcase.cpp
@@ -17,6 +17,9 @@
 
 #include "logunit.h"
 
+#define LOG4CXX_TEST 1
+#include <log4cxx/private/log4cxx_private.h>
+
 #include <log4cxx/logger.h>
 #include <log4cxx/logmanager.h>
 #include <log4cxx/simplelayout.h>
@@ -250,7 +253,13 @@ class AsyncAppenderTestCase : public AppenderSkeletonTestCase
 				{
 					for (size_t i = 0; i < LEN; i++)
 					{
+// As at 2024-7-19 the msys2 ucrt-x86_64 runtime terminates with error c0000374 during thread local data cleanup
+// The call to debug() avoids the use of the thread_local data in MessageBuffer
+#if LOG4CXX_HAS_THREAD_LOCAL && LOG4CXX_HAS_PTHREAD_SELF && !(defined(_WIN32) && defined(_LIBCPP_VERSION))
+						root->debug("message" + std::to_string(i));
+#else
 						LOG4CXX_DEBUG(root, "message" << i);
+#endif
 					}
 				});
 			}