diff --git a/.circleci/config.yml b/.circleci/config.yml
index 9ec925c..2db5ab3 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -32,7 +32,7 @@ jobs:
                 do echo "==> ${f}";
                 cat ${f};
                 echo "---------------------------------------";
-                ./check_serialization ${f} invalid;
+                ./check_serialization ${f};
                 if [ $? -ne 0 ] ; then
                   exit 1
                 fi