diff --git a/src/types/index.ts b/src/types/index.ts
index 89486696..c249260a 100644
--- a/src/types/index.ts
+++ b/src/types/index.ts
@@ -90,6 +90,7 @@ export interface SelectionRect extends Rect {
 }
 
 export interface EdgeProps {
+  id: ElementId;
   sourceX: number;
   sourceY: number;
   targetX: number;