diff --git a/Editor/Scripts/Editor/ImageProcessingGraphAsset.cs b/Editor/Scripts/Editor/ImageProcessingGraphAsset.cs
index 5e49131..d06176d 100644
--- a/Editor/Scripts/Editor/ImageProcessingGraphAsset.cs
+++ b/Editor/Scripts/Editor/ImageProcessingGraphAsset.cs
@@ -31,6 +31,7 @@ namespace ImageProcessingGraph.Editor
         {
             nodes = new List<BaseImageNode>();
             connections = new List<GraphConnection>();
+            stickyNotes = new List<IPT_StickyNoteData>();
         }