diff --git a/executables/nr-ue.c b/executables/nr-ue.c
index b957cb3bd4..245e22ae60 100644
--- a/executables/nr-ue.c
+++ b/executables/nr-ue.c
@@ -19,7 +19,8 @@
  *      contact@openairinterface.org
  */
 
-#define _GNU_SOURCE
+#define _GNU_SOURCE // For pthread_setname_np
+#include <pthread.h>
 #include <openair1/PHY/impl_defs_top.h>
 #include "executables/nr-uesoftmodem.h"
 #include "PHY/phy_extern_nr_ue.h"