diff --git a/src/test/run-pass/unique-assign-copy.rs b/src/test/run-pass/unique-assign-copy.rs
new file mode 100644
index 00000000000..389480bff1c
--- /dev/null
+++ b/src/test/run-pass/unique-assign-copy.rs
@@ -0,0 +1,10 @@
+fn main() {
+    let i = ~mutable 1;
+    // Should be a copy
+    let j;
+    j = i;
+    *i = 2;
+    *j = 3;
+    assert *i == 2;
+    assert *j == 3;
+}
\ No newline at end of file