2 files changed, 7 insertions, 8 deletions
diff --git a/src/model/core.js b/src/model/core.js
index 8575f7d0..015af1db 100644
--- a/src/model/core.js
+++ b/src/model/core.js
@@ -42,6 +42,13 @@ define([], function() {
 
     function Link() {
     }
+    // adapte Link to force_layoutL create __src,__dst aliases
+    Link.prototype.__defineGetter__('source', function(){
+        return this.__src;
+    });
+    Link.prototype.__defineGetter__('target', function(){
+        return this.__dst;
+    });
 
     /**
      * the most flexible way to create a node: - perform spec field validation -
diff --git a/src/rz_core.js b/src/rz_core.js
index 490c1a29..c1c8e0f9 100644
--- a/src/rz_core.js
+++ b/src/rz_core.js
@@ -114,14 +114,6 @@ function init_force_layout(){
               .size([w, h])
               .on("tick", tick)
               .start();
-
-    // adapte Link to force_layoutL create __src,__dst aliases
-    model_core.Link.prototype.source = function(){
-        return this.__src;
-    }
-    model_core.Link.prototype.target = function(){
-        return this.__dst;
-    }
 }
 
 initDrawingArea();