diff --git a/include/common/hathreads.h b/include/common/hathreads.h
index 82357d5..95dfb05 100644
--- a/include/common/hathreads.h
+++ b/include/common/hathreads.h
@@ -170,7 +170,7 @@
 	ti = &ha_thread_info[tid];
 }
 
-static inline unsigned long ha_get_pthread_id(unsigned int thr)
+static inline unsigned long long ha_get_pthread_id(unsigned int thr)
 {
 	return 0;
 }