diff --git a/node_efficiency_tools.py b/node_efficiency_tools.py
index 7d6661f1cc6d8d889c8e6a2d6b0b17b689dbfaed..757efa62a053aa30d01f00e7de28a8d3fee3cb3b 100644
--- a/node_efficiency_tools.py
+++ b/node_efficiency_tools.py
@@ -2774,7 +2774,7 @@ class NWAddMultipleImages(Operator, ImportHelper):
         nodes, links = get_nodes_links(context)
         nodes_list = [node for node in nodes]
         if nodes_list:
-            ggnodes_list.sort(key=lambda k: k.location.x)
+            nodes_list.sort(key=lambda k: k.location.x)
             xloc = nodes_list[0].location.x - 220  # place new nodes at far left
             yloc = 0
             for node in nodes: