diff --git a/t/t1005-read-tree-reset.sh b/t/t1005-read-tree-reset.sh
--- /dev/null
@@ -0,0 +1,30 @@
+#!/bin/sh
+
+test_description='read-tree -u --reset'
+
+. ./test-lib.sh
+
+# two-tree test
+
+test_expect_success 'setup' '
+ git init &&
+ mkdir df &&
+ echo content >df/file &&
+ git add df/file &&
+ git commit -m one &&
+ git ls-files >expect &&
+ rm -rf df &&
+ echo content >df &&
+ git add df &&
+ echo content >new &&
+ git add new &&
+ git commit -m two
+'
+
+test_expect_failure 'reset should work' '
+ git read-tree -u --reset HEAD^ &&
+ git ls-files >actual &&
+ diff -u expect actual
+'
+
+test_done