diff --git a/src/runtime2/tests/mod.rs b/src/runtime2/tests/mod.rs
index 00483c0c9a5217fe43870aa270e3e618ffad4fe0..0225f944d0c23c4aa5eaf7e55a26939ebd204bc9 100644
--- a/src/runtime2/tests/mod.rs
+++ b/src/runtime2/tests/mod.rs
@@ -39,7 +39,7 @@ fn test_component_communication() {
     }
     primitive receiver(in<u32> i) {
         print(\"receiver\");
-        sync get(i);
+        sync auto a = get(i);
     }
     composite constructor() {
         channel o -> i;