1 files changed, 3 insertions, 2 deletions
diff --git a/src/client/views/collections/TreeView.tsx b/src/client/views/collections/TreeView.tsx
index ff5c4bab1..c2d0983da 100644
--- a/src/client/views/collections/TreeView.tsx
+++ b/src/client/views/collections/TreeView.tsx
@@ -31,6 +31,7 @@ import { CollectionTreeView } from './CollectionTreeView';
 import { CollectionView, CollectionViewType } from './CollectionView';
 import "./TreeView.scss";
 import React = require("react");
+import { IconProp } from '@fortawesome/fontawesome-svg-core';
 
 export interface TreeViewProps {
     treeView: CollectionTreeView;
@@ -471,7 +472,7 @@ export class TreeView extends React.Component<TreeViewProps> {
             onClick={this.bulletClick}
             style={this.props.treeView.outlineMode ? { opacity: this.titleStyleProvider?.(this.doc, this.props.treeView.props, StyleProp.Opacity) } : {
                 color: StrCast(this.doc.color, checked === "unchecked" ? "white" : "inherit"),
-                opacity: checked === "unchecked" ? undefined : 0.4
+                opacity: checked === "unchecked" || typeof iconType !== "string" ? undefined : 0.4
             }}>
             {this.props.treeView.outlineMode ?
                 !(this.doc.text as RichTextField)?.Text ? (null) :
@@ -484,7 +485,7 @@ export class TreeView extends React.Component<TreeViewProps> {
                                     checked === "unchecked" ? "square" :
                                         !this.treeViewOpen ? "caret-right" : "caret-down"} />
                     </div>
-                    {this.onCheckedClick ? (null) : <FontAwesomeIcon icon={iconType} />}
+                    {this.onCheckedClick ? (null) : typeof iconType === "string" ? <FontAwesomeIcon icon={iconType as IconProp} /> : iconType}
                 </div>
             }
         </div>;