diff --git a/README.markdown b/README.markdown
index 5e351d1..9ea0e85 100644
--- a/README.markdown
+++ b/README.markdown
@@ -216,6 +216,10 @@ Environment Variables:
 $NPM_CONFIG_PREFIX
 $PREFIX
 ```
+Shell settings:
+```
+set -e
+```
 
 ## Problems