diff --git a/gui/ngXosViews/serviceTopology/src/js/config.js b/gui/ngXosViews/serviceTopology/src/js/config.js
new file mode 100644
index 0000000..b5c0db0
--- /dev/null
+++ b/gui/ngXosViews/serviceTopology/src/js/config.js
@@ -0,0 +1,10 @@
+(function () {
+  'use strict';
+
+  angular.module('xos.serviceTopology')
+  .constant('serviceTopologyConfig', {
+    widthMargin: 100,
+    heightMargin: 30
+  })
+
+}());
\ No newline at end of file