diff --git a/src/testlib/qsignaldumper.cpp b/src/testlib/qsignaldumper.cpp
index f0c35b92f9b..54b608ed501 100644
--- a/src/testlib/qsignaldumper.cpp
+++ b/src/testlib/qsignaldumper.cpp
@@ -25,7 +25,7 @@ inline static void qPrintMessage(const QByteArray &ba)
 
 Q_GLOBAL_STATIC(QList<QByteArray>, ignoreClasses)
 Q_CONSTINIT thread_local int iLevel = 0;
-static int ignoreLevel = 0;
+Q_CONSTINIT thread_local int ignoreLevel = 0;
 enum { IndentSpacesCount = 4 };
 
 static void qSignalDumperCallback(QObject *caller, int signal_index, void **argv)