diff --git a/tests/data/test161 b/tests/data/test161
index 0458359988..c7f4b632c4 100644
--- a/tests/data/test161
+++ b/tests/data/test161
@@ -44,6 +44,7 @@ SIZE 161
 RETR 161
 QUIT
 </protocol>
+# CURLE_PARTIAL_FILE = 18
 <errorcode>
 18
 </errorcode>