diff --git a/src/test/run-pass/issue-3250.rs b/src/test/run-pass/issue-3250.rs
new file mode 100644
index 0000000000000..086f94b2f62e9
--- /dev/null
+++ b/src/test/run-pass/issue-3250.rs
@@ -0,0 +1,7 @@
+#[auto_serialize]
+
+type t = (uint, uint);
+
+ 
+
+fn main() { }