diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa_misc.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa_misc.c
index 1003471c769b..a5816ed180f2 100644
--- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa_misc.c
+++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa_misc.c
@@ -366,7 +366,7 @@ SYSCTL_PROC(_vfs_zfs, OID_AUTO, debugflags,
 SYSCTL_UQUAD(_vfs_zfs, OID_AUTO, deadman_synctime_ms, CTLFLAG_RWTUN,
     &zfs_deadman_synctime_ms, 0,
     "Stalled ZFS I/O expiration time in milliseconds");
-SYSCTL_UQUAD(_vfs_zfs, OID_AUTO, deadman_checktime_ms, CTLFLAG_RwTUN,
+SYSCTL_UQUAD(_vfs_zfs, OID_AUTO, deadman_checktime_ms, CTLFLAG_RWTUN,
     &zfs_deadman_checktime_ms, 0,
     "Period of checks for stalled ZFS I/O in milliseconds");
 SYSCTL_INT(_vfs_zfs, OID_AUTO, deadman_enabled, CTLFLAG_RWTUN,