diff --git a/chapter07/rc.xml b/chapter07/rc.xml
index 9299c2cfd..625df6bc7 100644
--- a/chapter07/rc.xml
+++ b/chapter07/rc.xml
@@ -61,7 +61,7 @@ print_error_msg()
 # 
 startup() {
 
-        $debug $*
+        $debug "$@"
 
 }