diff --git a/src/test/auxiliary/cci_class_iface.rs b/src/test/auxiliary/cci_class_iface.rs
new file mode 100644
index 00000000000..61f22d47290
--- /dev/null
+++ b/src/test/auxiliary/cci_class_iface.rs
@@ -0,0 +1,7 @@
+mod animals {
+
+iface noisy {
+  fn speak();
+}
+
+}
diff --git a/src/test/run-pass/class-implement-iface-cross-crate.rs b/src/test/run-pass/class-implement-iface-cross-crate.rs
new file mode 100644
index 00000000000..2c845fa1c03
--- /dev/null
+++ b/src/test/run-pass/class-implement-iface-cross-crate.rs
@@ -0,0 +1,45 @@
+// xfail-fast
+// aux-build:cci_class_iface.rs
+use cci_class_iface;
+import cci_class_iface::animals::*;
+
+class cat implements noisy {
+  priv {
+    let mut meows : uint;
+    fn meow() {
+      #error("Meow");
+      self.meows += 1u;
+      if self.meows % 5u == 0u {
+          self.how_hungry += 1;
+      }
+    }
+  }
+
+  let mutable how_hungry : int;
+  let name : str;
+
+  new(in_x : uint, in_y : int, in_name: str)
+    { self.meows = in_x; self.how_hungry = in_y; self.name = in_name; }
+
+  fn speak() { self.meow(); }
+
+  fn eat() -> bool {
+    if self.how_hungry > 0 {
+        #error("OM NOM NOM");
+        self.how_hungry -= 2;
+        ret true;
+    }
+    else {
+        #error("Not hungry!");
+        ret false;
+    }
+  }
+}
+
+fn main() {
+  let nyan = cat(0u, 2, "nyan");
+  nyan.eat();
+  assert(!nyan.eat());
+  uint::range(1u, 10u, {|_i| nyan.speak(); });
+  assert(nyan.eat());
+}
\ No newline at end of file