diff --git a/sys/kern/kern_kcov.c b/sys/kern/kern_kcov.c
index cdf85b4c647..cedfa2c081b 100644
--- a/sys/kern/kern_kcov.c
+++ b/sys/kern/kern_kcov.c
@@ -35,6 +35,8 @@
  * $FreeBSD$
  */
 
+#define	KCSAN_RUNTIME
+
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 
diff --git a/sys/kern/subr_coverage.c b/sys/kern/subr_coverage.c
index e38f3b36e78..f3ab27c2ca3 100644
--- a/sys/kern/subr_coverage.c
+++ b/sys/kern/subr_coverage.c
@@ -35,6 +35,8 @@
  * $FreeBSD$
  */
 
+#define	KCSAN_RUNTIME
+
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");