diff --git a/sys/sys/lock.h b/sys/sys/lock.h
index dcf7b772217a..c2359f6bea1b 100644
--- a/sys/sys/lock.h
+++ b/sys/sys/lock.h
@@ -127,7 +127,7 @@ struct lock_list_entry {
  * calling conventions for this debugging code in modules so that modules can
  * work with both debug and non-debug kernels.
  */
-#if defined(KLD_MODULE) || defined(WITNESS) || defined(INVARIANTS) || defined(INVARIANT_SUPPORT) || defined(KTR)
+#if defined(KLD_MODULE) || defined(WITNESS) || defined(INVARIANTS) || defined(INVARIANT_SUPPORT) || defined(KTR) || defined(MUTEX_PROFILING)
 #define	LOCK_DEBUG	1
 #else
 #define	LOCK_DEBUG	0