diff --git a/Bonsai.Editor/ExplorerTreeView.cs b/Bonsai.Editor/ExplorerTreeView.cs
index 55344c6f..8be94321 100644
--- a/Bonsai.Editor/ExplorerTreeView.cs
+++ b/Bonsai.Editor/ExplorerTreeView.cs
@@ -131,7 +131,7 @@ private static int GetStateImageIndex(ExplorerNodeStatus status)
         {
             return status switch
             {
-                ExplorerNodeStatus.Ready => 0,
+                ExplorerNodeStatus.Ready => -1,
                 ExplorerNodeStatus.Blocked => 1,
                 _ => throw new ArgumentException("Invalid node status.", nameof(status))
             };