diff --git a/src/sunstone/public/app/app.js b/src/sunstone/public/app/app.js
index dcd537d4c2..7502a1c8c3 100644
--- a/src/sunstone/public/app/app.js
+++ b/src/sunstone/public/app/app.js
@@ -243,7 +243,7 @@ define(function(require) {
          url: 'config',
          type: "GET",
          headers: {
-           "ZONE_NAME" : this.id
+           "ZONE-NAME" : this.id
          },
          dataType: "json",
          success: function() {
diff --git a/src/sunstone/sunstone-server.rb b/src/sunstone/sunstone-server.rb
index 458a45d253..314f77141c 100755
--- a/src/sunstone/sunstone-server.rb
+++ b/src/sunstone/sunstone-server.rb
@@ -386,7 +386,7 @@ before do
     # Try with underscores
     if zone_name_header.nil?
         hpref        = "HTTP_"
-        head_zone    = "ZONE_NAME"
+        head_zone    = "ZONE-NAME"
 
         zone_name_header = reqenv[head_zone] ? reqenv[head_zone] : reqenv[hpref+head_zone]
     end