diff --git a/sys/cam/scsi/scsi_all.c b/sys/cam/scsi/scsi_all.c
--- a/sys/cam/scsi/scsi_all.c
+++ b/sys/cam/scsi/scsi_all.c
@@ -9406,7 +9406,8 @@
 	return (set_scsi_delay(delay));
 }
 SYSCTL_PROC(_kern_cam, OID_AUTO, scsi_delay,
-    CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, 0, 0, sysctl_scsi_delay, "I",
+    CTLTYPE_INT | CTLFLAG_RWTUN | CTLFLAG_NOFETCH | CTLFLAG_MPSAFE,
+    0, 0, sysctl_scsi_delay, "I",
     "Delay to allow devices to settle after a SCSI bus reset (ms)");
 
 static int