diff --git a/run b/run
index 675533b..c52932a 100755
--- a/run
+++ b/run
@@ -1,5 +1,5 @@
 #!/usr/bin/env sh
-set -ex
+set -e
 export PYTHONPATH="$(dirname $0):$PYTHONPATH"
 
 python_best_version() {