diff --git a/src/thread/pithread.cpp b/src/thread/pithread.cpp
index 7a0478f7..4dbf9251 100755
--- a/src/thread/pithread.cpp
+++ b/src/thread/pithread.cpp
@@ -320,7 +320,8 @@ void PIThread::setPriority(PIThread::Priority prior) {
 	if (!running_ && (thread != 0)) return;
 	policy_ = 0;
 	memset(&sparam, 0, sizeof(sparam));
-	pthread_getschedparam(thread, &policy_, &sparam);
+	struct sched_param param;
+	pthread_getschedparam(thread, &policy_, &param);
 	sparam.
 #  ifndef LINUX
 			sched_priority