diff --git a/docking-api/src/ModernDocking/layouts/DockingTabPanelNode.java b/docking-api/src/ModernDocking/layouts/DockingTabPanelNode.java
index d36d9956..0a391226 100644
--- a/docking-api/src/ModernDocking/layouts/DockingTabPanelNode.java
+++ b/docking-api/src/ModernDocking/layouts/DockingTabPanelNode.java
@@ -86,7 +86,12 @@ public void addTab(String persistentID) {
 			}
 			return;
 		}
-		String className = DockingInternal.get(docking).getDockable(persistentID).getClass().getCanonicalName();
+		String className = "";
+		try {
+			className = DockingInternal.get(docking).getDockable(persistentID).getClass().getCanonicalName();
+		}
+		catch (Exception ignored) {
+		}
 
 		DockingSimplePanelNode tab = new DockingSimplePanelNode(docking, persistentID, className);
 		tab.setParent(this);