diff --git a/src/main/java/indi/bookmarkx/ui/tree/BmkTreeCellRenderer.java b/src/main/java/indi/bookmarkx/ui/tree/BmkTreeCellRenderer.java
index b66a07d..4f3bdf3 100644
--- a/src/main/java/indi/bookmarkx/ui/tree/BmkTreeCellRenderer.java
+++ b/src/main/java/indi/bookmarkx/ui/tree/BmkTreeCellRenderer.java
@@ -5,6 +5,7 @@
 import com.intellij.openapi.util.IconLoader;
 import com.intellij.util.ui.UIUtil;
 import indi.bookmarkx.common.BaseColors;
+import indi.bookmarkx.model.BookmarkNodeModel;
 
 import javax.swing.Icon;
 import javax.swing.JTree;
@@ -48,6 +49,12 @@ public Component getTreeCellRendererComponent(JTree tree,
             icon = node.isBookmark()
                     ? IconLoader.findIcon("icons/bookmark.svg")
                     : AllIcons.Nodes.Folder;
+            if (node.isBookmark()) {
+                BookmarkNodeModel model =  (BookmarkNodeModel) node.getUserObject();
+                if (null == model.getOpenFileDescriptor()) {
+                    icon = IconLoader.findIcon("icons/dissmiss.svg");
+                }
+            }
         }
         setIcon(icon);
         return this;
diff --git a/src/main/java/indi/bookmarkx/ui/tree/BookmarkTree.java b/src/main/java/indi/bookmarkx/ui/tree/BookmarkTree.java
index a6b32ad..1f92a23 100644
--- a/src/main/java/indi/bookmarkx/ui/tree/BookmarkTree.java
+++ b/src/main/java/indi/bookmarkx/ui/tree/BookmarkTree.java
@@ -197,6 +197,9 @@ public void mouseClicked(MouseEvent e) {
                         BookmarkNodeModel bookmark = (BookmarkNodeModel) selectedNode.getUserObject();
 
                         OpenFileDescriptor fileDescriptor = bookmark.getOpenFileDescriptor();
+                        if (null == fileDescriptor) {
+                            return;
+                        }
                         fileDescriptor.navigate(true);
                     }
                 }
diff --git a/src/main/resources/icons/dissmiss.svg b/src/main/resources/icons/dissmiss.svg
new file mode 100644
index 0000000..c2c14cf
--- /dev/null
+++ b/src/main/resources/icons/dissmiss.svg
@@ -0,0 +1,7 @@
+<?xml version="1.0" standalone="no"?><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN"
+        "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg t="1720532863078" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="1913"
+     width="13" height="13" xmlns:xlink="http://www.w3.org/1999/xlink">
+    <path d="M700.896 206.56a22.976 22.976 0 0 1-16.736-7.2 63.872 63.872 0 0 1-11.968-16.768c-3.2-6.368-5.6-12.928-7.2-19.616a74.88 74.88 0 0 1-2.4-16.768V28.48h1.92c5.76 0 11.2 0.64 16.288 1.92 5.12 1.28 11.328 4.288 18.656 9.088 7.36 4.8 16.32 11.52 26.816 20.096 10.56 8.64 23.776 19.968 39.744 34.016 17.248 15.296 30.976 28.224 41.184 38.784 10.208 10.528 17.856 19.456 22.976 26.784 5.12 7.36 8.448 13.568 10.048 18.688 1.6 5.12 2.4 9.6 2.4 13.408v15.328h-141.728z m111.072 358.08a203.2 203.2 0 0 1 82.368 16.768c25.536 11.2 47.872 26.336 67.008 45.472a216.576 216.576 0 0 1 45.504 67.04c11.168 25.536 16.736 52.672 16.736 81.408 0 29.344-5.568 56.8-16.736 82.336a216.544 216.544 0 0 1-45.504 67.008 216.544 216.544 0 0 1-67.008 45.504 203.2 203.2 0 0 1-82.368 16.736 200.832 200.832 0 0 1-81.376-16.736 216.608 216.608 0 0 1-67.04-45.504 216.576 216.576 0 0 1-45.472-67.008 203.168 203.168 0 0 1-16.768-82.336c0-28.736 5.6-55.872 16.768-81.408a216.64 216.64 0 0 1 45.472-67.04 216.64 216.64 0 0 1 67.04-45.44 200.832 200.832 0 0 1 81.376-16.8z m42.144 211.616l63.2-63.168c5.76-5.76 8.64-12.8 8.64-21.088 0-8.32-2.88-15.328-8.64-21.056a28.672 28.672 0 0 0-21.088-8.64c-8.288 0-15.296 2.88-21.056 8.64l-63.2 63.2-64.16-63.2a28.672 28.672 0 0 0-21.056-8.64c-8.32 0-15.328 2.88-21.056 8.64a28.672 28.672 0 0 0-8.64 21.056c0 8.32 2.88 15.328 8.64 21.088l63.2 63.168-63.2 64.16a28.672 28.672 0 0 0-8.64 21.088c0 8.288 2.88 15.296 8.64 21.056 5.76 5.76 12.768 8.64 21.056 8.64 8.32 0 15.328-2.88 21.088-8.64l64.128-63.2 63.2 63.2c5.76 5.76 12.8 8.64 21.088 8.64s15.296-2.88 21.056-8.64c5.76-5.76 8.64-12.8 8.64-21.056 0-8.32-2.88-15.36-8.64-21.088l-63.2-64.16z m-315.04-29.664c-0.64 5.12-0.96 9.6-0.96 13.408v14.368c0 28.704 4.16 56 12.48 81.856a261.44 261.44 0 0 0 35.424 71.36H246.08c-12.128 0-25.376-3.52-39.744-10.56a167.872 167.872 0 0 1-71.328-67.04 92.16 92.16 0 0 1-12.448-45.952V152c0-13.408 3.2-27.456 9.6-42.144 6.368-14.656 14.816-27.904 25.344-39.712 10.56-11.84 22.496-21.728 35.904-29.696 13.44-8 27.456-11.968 42.144-11.968h366.72v119.68c0 12.16 1.92 25.216 5.76 39.264 3.84 14.048 9.728 26.976 17.696 38.784 8 11.808 18.368 21.696 31.136 29.696 12.768 7.968 28.096 11.968 45.952 11.968h139.808v237.44a312.448 312.448 0 0 0-33.504-1.92c-47.904 0-91.776 11.2-131.68 33.536a268.672 268.672 0 0 0-96.224 90.016H302.592c-16.64 0-30.816 5.888-42.624 17.696a58.08 58.08 0 0 0-17.728 42.624c0 16.576 5.92 30.624 17.728 42.112 11.808 11.52 26.016 17.248 42.624 17.248h236.48zM302.592 387.52c-16.64 0-30.816 5.76-42.624 17.248a56.512 56.512 0 0 0-17.728 42.112c0 16.608 5.92 30.816 17.728 42.624 11.808 11.808 26.016 17.696 42.624 17.696h359.04c16.64 0 30.816-5.888 42.624-17.696 11.84-11.84 17.728-26.016 17.728-42.624 0-16.608-5.92-30.624-17.728-42.112a58.88 58.88 0 0 0-42.592-17.28H302.592z"
+          fill="#D8D8D8" p-id="1914"></path>
+</svg>
\ No newline at end of file