diff --git a/cmd/zhack/zhack.c b/cmd/zhack/zhack.c
index cc414dae15..70f88fc698 100644
--- a/cmd/zhack/zhack.c
+++ b/cmd/zhack/zhack.c
@@ -151,7 +151,8 @@ zhack_import(char *target, boolean_t readonly)
 	}
 
 	zfeature_checks_disable = B_TRUE;
-	error = spa_import(target, config, props, ZFS_IMPORT_NORMAL);
+	error = spa_import(target, config, props,
+	    (readonly ?  ZFS_IMPORT_SKIP_MMP : ZFS_IMPORT_NORMAL));
 	zfeature_checks_disable = B_FALSE;
 	if (error == EEXIST)
 		error = 0;