diff --git a/bash/snippets/browser-functions b/bash/snippets/browser-functions
index fb0daff0..d4ca3638 100644
--- a/bash/snippets/browser-functions
+++ b/bash/snippets/browser-functions
@@ -1,8 +1,8 @@
 debug_on() {
   local usage='Usage: debug_on server-type [no-refresh]'
   local err='Error: debug_on():'
-  local php_port=8000
-  local apache_port=8001
+  local php_port="8000"
+  local apache_port="8001"
   local refresh
   refresh=$(echo "$2" | tr '[:upper:]' '[:lower:]')
   local stype