diff --git a/source/blender/compositor/intern/COM_ExecutionSystemHelper.cpp b/source/blender/compositor/intern/COM_ExecutionSystemHelper.cpp
index bedbfc72722..33a5cafebbe 100644
--- a/source/blender/compositor/intern/COM_ExecutionSystemHelper.cpp
+++ b/source/blender/compositor/intern/COM_ExecutionSystemHelper.cpp
@@ -49,7 +49,8 @@ void ExecutionSystemHelper::addbNodeTree(ExecutionSystem &system, int nodes_star
 	/* add all nodes of the tree to the node list */
 	bNode *node = (bNode *)tree->nodes.first;
 	while (node != NULL) {
-		addNode(nodes, node, isActiveGroup, system.getContext().isFastCalculation());
+		Node *nnode = addNode(nodes, node, isActiveGroup, system.getContext().isFastCalculation());
+		nnode->setbNodeGroup(groupnode);
 		node = (bNode *)node->next;
 	}
 
diff --git a/source/blender/compositor/intern/COM_Node.h b/source/blender/compositor/intern/COM_Node.h
index bfccd069ad1..e8fd936e749 100644
--- a/source/blender/compositor/intern/COM_Node.h
+++ b/source/blender/compositor/intern/COM_Node.h
@@ -53,6 +53,12 @@ private:
 	 * @brief Is this node part of the active group
 	 */
 	bool m_inActiveGroup;
+	
+	/**
+	 * @brief The group node this node belongs to.
+	 * @note: used to find the links in the current subtree for muting nodes
+	 */
+	bNode* m_bNodeGroup;
 
 public:
 	Node(bNode *editorNode, bool create_sockets = true);
@@ -134,6 +140,9 @@ public:
 	 * @param socket
 	 */
 	OutputSocket *findOutputSocketBybNodeSocket(bNodeSocket *socket);
+	
+	inline void setbNodeGroup(bNode* group) {this->m_bNodeGroup = group;}
+	inline bNode* getbNodeGroup() {return this->m_bNodeGroup;}
 protected:
 	void addPreviewOperation(ExecutionSystem *system, CompositorContext *context, InputSocket *inputSocket);
 	void addPreviewOperation(ExecutionSystem *system, CompositorContext *context, OutputSocket *outputSocket);
diff --git a/source/blender/compositor/nodes/COM_MuteNode.cpp b/source/blender/compositor/nodes/COM_MuteNode.cpp
index eb2da147eca..ebee1f25455 100644
--- a/source/blender/compositor/nodes/COM_MuteNode.cpp
+++ b/source/blender/compositor/nodes/COM_MuteNode.cpp
@@ -111,11 +111,17 @@ void MuteNode::convertToOperations(ExecutionSystem *graph, CompositorContext *co
 	if ((editorNode->flag & NODE_MUTED) && editorNode->typeinfo->internal_connect) {
 		vector<InputSocket *> &inputsockets = this->getInputSockets();
 		vector<OutputSocket *> relinkedsockets;
-		bNodeTree *editorTree = (bNodeTree *) context->getbNodeTree();
+		bNodeTree *editorTree;
 		SocketMap socketMap;
 		ListBase intlinks;
 		bNodeLink *link;
 
+		if (this->getbNodeGroup()) {
+			editorTree = (bNodeTree *) getbNodeGroup()->id;
+		} else {
+			editorTree = (bNodeTree *) context->getbNodeTree();
+		}
+
 		intlinks = editorNode->typeinfo->internal_connect(editorTree, editorNode);
 
 		this->fillSocketMap<OutputSocket>(outputsockets, socketMap);