diff --git a/src/editor/GraphEditor.ts b/src/editor/GraphEditor.ts
index 4d83216..e368b0a 100644
--- a/src/editor/GraphEditor.ts
+++ b/src/editor/GraphEditor.ts
@@ -348,7 +348,7 @@ export class GraphEditor extends HTMLElement {
           return `translate(${middleX},${middleY})`;
         }
         if (this.isBidirectional(d.source, d.target)) {
-          const [start, end] = paddedArcPathPoints(d.source, d.target, this.config);
+          const [start, end] = paddedArcPathPoints(d.target, d.source, this.config);
           const [middleX, middleY] = arcMiddlePoint(start, end, this.config);
           return `translate(${middleX},${middleY})`;
         }