diff --git a/sys/cam/nvme/nvme_da.c b/sys/cam/nvme/nvme_da.c
index 340b48a82248..cf2da478753a 100644
--- a/sys/cam/nvme/nvme_da.c
+++ b/sys/cam/nvme/nvme_da.c
@@ -167,10 +167,16 @@ static void		ndasuspend(void *arg);
 #define NDA_MAX_TRIM_ENTRIES 256	/* Number of DSM trims to use, max 256 */
 #endif
 
+static SYSCTL_NODE(_kern_cam, OID_AUTO, nda, CTLFLAG_RD, 0,
+            "CAM Direct Access Disk driver");
+
 //static int nda_retry_count = NDA_DEFAULT_RETRY;
 static int nda_send_ordered = NDA_DEFAULT_SEND_ORDERED;
 static int nda_default_timeout = NDA_DEFAULT_TIMEOUT;
 static int nda_max_trim_entries = NDA_MAX_TRIM_ENTRIES;
+SYSCTL_INT(_kern_cam_nda, OID_AUTO, max_trim, CTLFLAG_RDTUN,
+    &nda_max_trim_entries, NDA_MAX_TRIM_ENTRIES,
+    "Maximum number of BIO_DELETE to send down as a DSM TRIM.");
 
 /*
  * All NVMe media is non-rotational, so all nvme device instances
@@ -178,9 +184,6 @@ static int nda_max_trim_entries = NDA_MAX_TRIM_ENTRIES;
  */
 static int nda_rotating_media = 0;
 
-static SYSCTL_NODE(_kern_cam, OID_AUTO, nda, CTLFLAG_RD, 0,
-            "CAM Direct Access Disk driver");
-
 static struct periph_driver ndadriver =
 {
 	ndainit, "nda",