diff --git a/tests/test-issue433 b/tests/test-issue433
new file mode 100755
--- /dev/null
+++ b/tests/test-issue433
@@ -0,0 +1,10 @@
+#!/bin/sh
+# http://www.selenic.com/mercurial/bts/issue433
+
+hg init a
+cd a       
+echo a > a 
+hg commit -Ama 
+
+hg parents -r 0 doesnotexist
+true
diff --git a/tests/test-issue433.out b/tests/test-issue433.out
new file mode 100644
--- /dev/null
+++ b/tests/test-issue433.out
@@ -0,0 +1,2 @@
+adding a
+abort: 'doesnotexist' not found in manifest!