diff --git a/Cargo.lock b/Cargo.lock
index 216ee4d44..a06d657ce 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1135,6 +1135,7 @@ dependencies = [
  "eframe",
  "egui_extras",
  "env_logger",
+ "log",
  "serde",
 ]
 
diff --git a/crates/egui_extras/src/dock/behavior.rs b/crates/egui_extras/src/dock/behavior.rs
index 3f9bc5475..a3927713e 100644
--- a/crates/egui_extras/src/dock/behavior.rs
+++ b/crates/egui_extras/src/dock/behavior.rs
@@ -12,9 +12,13 @@ pub trait Behavior<Leaf> {
     fn tab_text_for_leaf(&mut self, leaf: &Leaf) -> WidgetText;
 
     fn tab_text_for_node(&mut self, nodes: &Nodes<Leaf>, node_id: NodeId) -> WidgetText {
-        match &nodes.nodes[&node_id] {
-            Node::Leaf(leaf) => self.tab_text_for_leaf(leaf),
-            Node::Branch(branch) => format!("{:?}", branch.get_layout()).into(),
+        if let Some(node) = nodes.nodes.get(&node_id) {
+            match node {
+                Node::Leaf(leaf) => self.tab_text_for_leaf(leaf),
+                Node::Branch(branch) => format!("{:?}", branch.get_layout()).into(),
+            }
+        } else {
+            "MISSING NODE".into()
         }
     }
 
diff --git a/examples/dock/Cargo.toml b/examples/dock/Cargo.toml
index a7b27a2e6..fd2282c05 100644
--- a/examples/dock/Cargo.toml
+++ b/examples/dock/Cargo.toml
@@ -15,4 +15,5 @@ eframe = { path = "../../crates/eframe", features = [
 ] }
 egui_extras = { path = "../../crates/egui_extras" }
 env_logger = "0.10"
+log = "0.4"
 serde = { version = "1.0", features = ["derive"] }
diff --git a/examples/dock/src/main.rs b/examples/dock/src/main.rs
index 0c1f74f39..727b34b5f 100644
--- a/examples/dock/src/main.rs
+++ b/examples/dock/src/main.rs
@@ -244,12 +244,16 @@ fn tree_ui(
     nodes: &mut dock::Nodes<View>,
     node_id: dock::NodeId,
 ) {
+    // Get the name BEFORE we remove the node below
     let text = format!(
         "{} - {node_id:?}",
         behavior.tab_text_for_node(nodes, node_id).text()
     );
 
-    let Some(mut node) = nodes.nodes.remove(&node_id) else { return; };
+    let Some(mut node) = nodes.nodes.remove(&node_id) else {
+        log::warn!("Missing node {node_id:?}");
+        return;
+    };
 
     egui::CollapsingHeader::new(text)
         .id_source((node_id, "tree"))