diff --git a/electron/types/clockTree.d.ts b/electron/types/clockTree.d.ts
index ea39b815..3c55afe0 100644
--- a/electron/types/clockTree.d.ts
+++ b/electron/types/clockTree.d.ts
@@ -44,7 +44,7 @@ export interface ClockTreeEdgeType {
 
 export interface ClockTreeNodeType {
   type: ClockTreeNodeTypeType
-  position: XYPosition
+  position?: XYPosition
   unit?: ClockTreeNodeUnitType
 }
 
diff --git a/src/database/clockTree.ts b/src/database/clockTree.ts
index 633d8344..0662f3d2 100644
--- a/src/database/clockTree.ts
+++ b/src/database/clockTree.ts
@@ -155,7 +155,7 @@ export class ClockTreeNode {
   }
 
   get position(): XYPosition {
-    return this._origin.position
+    return this._origin.position ?? { x: 0, y: 0 }
   }
 
   get unit(): ClockTreeNodeUnitType | undefined {