diff --git a/libs/main/thread/pithread.cpp b/libs/main/thread/pithread.cpp
index aa00aa21..0c6d8913 100644
--- a/libs/main/thread/pithread.cpp
+++ b/libs/main/thread/pithread.cpp
@@ -768,11 +768,13 @@ bool PIThread::_startThread(void * func) {
 	// PICout(PICoutManipulators::DefaultControls) << "pthread_create" << PRIVATE->thread;
 	pthread_attr_destroy(&attr);
 	if (ret == 0) {
+		PIString tname = name().simplified();
+		tname.elide(15, 0.4f).resize(15, PIChar('\0'));
 #  ifdef MAC_OS
-		pthread_setname_np(((PIString &)name().elided(15, 0.4f).resize(15, PIChar('\0'))).dataAscii());
+		pthread_setname_np(tname.dataAscii());
 		pthread_threadid_np(PRIVATE->thread, (__uint64_t *)&tid_);
 #  else
-		pthread_setname_np(PRIVATE->thread, ((PIString &)name().elided(15, 0.4f).resize(15, PIChar('\0'))).dataAscii());
+		pthread_setname_np(PRIVATE->thread, tname.dataAscii());
 #  endif
 		setPriority(priority_);
 		return true;