diff --git a/README.md b/README.md
index 75674c0..53aa3e8 100755
--- a/README.md
+++ b/README.md
@@ -107,7 +107,7 @@ Call the `dist/linux/router/bin/tunnel-control.sh` script as follows to create a
 
 `tunnel-control.sh router.reachability`
 
-#### Find out if the router is running. Returns a true or false
+#### Find out if the router is running. Returns "true" or "false"
 
 `tunnel-control.sh router.isRunning`