diff --git a/intern/cycles/graph/node.cpp b/intern/cycles/graph/node.cpp
index c5b4bb471bb..57f25283f85 100644
--- a/intern/cycles/graph/node.cpp
+++ b/intern/cycles/graph/node.cpp
@@ -372,7 +372,7 @@ void Node::copy_value(const SocketType &socket, const Node &other, const SocketT
 
         array<Node *> &node_array = get_socket_value<array<Node *>>(this, socket);
 
-        for (Node *node: node_array) {
+        for (Node *node : node_array) {
           node->reference();
         }