diff --git a/sys/kern/vfs_cache.c b/sys/kern/vfs_cache.c
index c47f6a0438b..254b5d4d1b6 100644
--- a/sys/kern/vfs_cache.c
+++ b/sys/kern/vfs_cache.c
@@ -1029,7 +1029,7 @@ SYSCTL_PROC(_vfs_cache_param, OID_AUTO, negminpct,
     CTLTYPE_INT | CTLFLAG_MPSAFE | CTLFLAG_RW, NULL, 0, sysctl_negminpct,
     "I", "Negative entry \% of namecache capacity above which automatic eviction is allowed");
 
-#ifdef DIAGNOSTIC
+#ifdef DEBUG_CACHE
 /*
  * Grab an atomic snapshot of the name cache hash chain lengths
  */