1 files changed, 2 insertions, 2 deletions
diff --git a/src/client/views/PreviewCursor.tsx b/src/client/views/PreviewCursor.tsx
index 7575aa430..ee5a390a7 100644
--- a/src/client/views/PreviewCursor.tsx
+++ b/src/client/views/PreviewCursor.tsx
@@ -22,7 +22,7 @@ export class PreviewCursor extends React.Component<{}> {
     static _getTransform: () => Transform;
     static _addDocument: (doc: Doc | Doc[]) => void;
     static _addLiveTextDoc: (doc: Doc) => void;
-    static _nudge?: (x: number, y: number) => boolean;
+    static _nudge?: undefined | ((x: number, y: number) => boolean);
     @observable static _clickPoint = [0, 0];
     @observable public static Visible = false;
     constructor(props: any) {
@@ -158,7 +158,7 @@ export class PreviewCursor extends React.Component<{}> {
         addLiveText: (doc: Doc) => void,
         getTransform: () => Transform,
         addDocument: (doc: Doc | Doc[]) => boolean,
-        nudge: (nudgeX: number, nudgeY: number) => boolean) {
+        nudge: undefined | ((nudgeX: number, nudgeY: number) => boolean)) {
         this._clickPoint = [x, y];
         this._onKeyPress = onKeyPress;
         this._addLiveTextDoc = addLiveText;