diff --git a/module/zfs/vdev_indirect_mapping.c b/module/zfs/vdev_indirect_mapping.c
index bb484a401b..4ade56e062 100644
--- a/module/zfs/vdev_indirect_mapping.c
+++ b/module/zfs/vdev_indirect_mapping.c
@@ -54,6 +54,8 @@ vdev_indirect_mapping_verify(vdev_indirect_mapping_t *vim)
 
 	return (B_TRUE);
 }
+#else
+#define	vdev_indirect_mapping_verify(vim) ((void) sizeof (vim), B_TRUE)
 #endif
 
 uint64_t