diff --git a/sys/sys/pmckern.h b/sys/sys/pmckern.h
index da2aae5fc840..1400666ac4d9 100644
--- a/sys/sys/pmckern.h
+++ b/sys/sys/pmckern.h
@@ -217,7 +217,6 @@ do {						\
  */
 #define	PMC_CALL_HOOK_UNLOCKED(t, cmd, arg)	\
 do {						\
-	MPASS(!in_epoch());					\
 	if (pmc_hook != NULL)				\
 		(pmc_hook)((t), (cmd), (arg));	\
 } while (0)