diff --git a/HISTORY.md b/HISTORY.md
index 6272ccf0..a13f64b0 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -12,6 +12,7 @@ http://visjs.org
 ### Network
 
 - Fixed #1531 , #1335:  border distances for arrow positioning
+- Fixed findNode method. It now does not return internal objects anymore.
 
 ## 2015-12-18, version 4.11.0
 
diff --git a/dist/vis.js b/dist/vis.js
index fc1c0b3a..ddddec10 100644
--- a/dist/vis.js
+++ b/dist/vis.js
@@ -36479,11 +36479,11 @@ return /******/ (function(modules) { // webpackBootstrap
         var counter = 0;
 
         while (this.clusteredNodes[nodeId] !== undefined && counter < max) {
-          stack.push(this.clusteredNodes[nodeId].node);
+          stack.push(nodeId);
           nodeId = this.clusteredNodes[nodeId].clusterId;
           counter++;
         }
-        stack.push(this.body.nodes[nodeId]);
+        stack.push(nodeId);
         return stack;
       }
 
diff --git a/examples/network/other/clustering.html b/examples/network/other/clustering.html
index 30b745ef..2f2eb8eb 100644
--- a/examples/network/other/clustering.html
+++ b/examples/network/other/clustering.html
@@ -80,7 +80,7 @@ Click any of the buttons below to cluster the network. On every push the network
               network.openCluster(params.nodes[0]);
           }
       }
-  })
+  });
 
   function clusterByCid() {
       network.setData(data);
@@ -89,7 +89,7 @@ Click any of the buttons below to cluster the network. On every push the network
               return childOptions.cid == 1;
           },
           clusterNodeProperties: {id:'cidCluster', borderWidth:3, shape:'database'}
-      }
+      };
       network.cluster(clusterOptionsByData);
   }
   function clusterByColor() {
@@ -111,7 +111,7 @@ Click any of the buttons below to cluster the network. On every push the network
                   return clusterOptions;
               },
               clusterNodeProperties: {id: 'cluster:' + color, borderWidth: 3, shape: 'database', color:color, label:'color:' + color}
-          }
+          };
           network.cluster(clusterOptionsByData);
       }
   }
@@ -131,7 +131,7 @@ Click any of the buttons below to cluster the network. On every push the network
             return clusterOptions;
           },
           clusterNodeProperties: {borderWidth:3, shape:'box', font:{size:30}}
-      }
+      };
       network.clusterByHubsize(undefined, clusterOptionsByData);
   }
 
diff --git a/lib/network/modules/Clustering.js b/lib/network/modules/Clustering.js
index 6c706dba..7ef1e970 100644
--- a/lib/network/modules/Clustering.js
+++ b/lib/network/modules/Clustering.js
@@ -672,11 +672,11 @@ class ClusterEngine {
     let counter = 0;
 
     while (this.clusteredNodes[nodeId] !== undefined && counter < max) {
-      stack.push(this.clusteredNodes[nodeId].node);
+      stack.push(nodeId);
       nodeId = this.clusteredNodes[nodeId].clusterId;
       counter++;
     }
-    stack.push(this.body.nodes[nodeId]);
+    stack.push(nodeId);
     return stack;
   }