diff --git a/usr.sbin/bhyve/Makefile b/usr.sbin/bhyve/Makefile
--- a/usr.sbin/bhyve/Makefile
+++ b/usr.sbin/bhyve/Makefile
@@ -133,5 +133,10 @@
 
 WARNS?=	2
 
+# Disable thread safety analysis since it only finds very simple bugs and
+# yields many false positives.
+NO_WTHREAD_SAFETY=
+
 SUBDIR=	kbdlayout
+
 .include <bsd.prog.mk>