diff --git a/tests/rlp/test_api_usage.nim b/tests/rlp/test_api_usage.nim
index 39cf063..c790968 100644
--- a/tests/rlp/test_api_usage.nim
+++ b/tests/rlp/test_api_usage.nim
@@ -38,7 +38,7 @@ suite "test api usage":
     writer.append "foo"
     writer.append "bar"
 
-    expect Defect:
+    expect AssertionDefect:
       discard writer.finish
 
   test "encode/decode object":