diff --git a/run.sh b/run.sh
index 955e2d7b..f69da560 100755
--- a/run.sh
+++ b/run.sh
@@ -60,4 +60,4 @@ run "MAWK" "mawk -f ./awk/code.awk 40"
 run "Clojure" "java -cp clojure/classes:$(clojure -Spath) code 40"
 run "Babashka" "bb -cp clojure -m code 40"
 run "COBOL" "./cobol/main"
-run "Cython" "./cython/code"
+run "Cython" "./cython/code 40"