From ea3925455686083b5ee2b0bd1d3043e64632a5de Mon Sep 17 00:00:00 2001
From: Shahir Ahmed <ahmeds@dickinson.edu>
Date: Wed, 19 Mar 2025 20:41:43 -0400
Subject: [PATCH] ensure maxLabelWidth is a number

Co-authored-by: pranavm2109 <mishrap@dickinson.edu>
---
 packages/mermaid/src/diagrams/user-journey/journeyRenderer.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/packages/mermaid/src/diagrams/user-journey/journeyRenderer.ts b/packages/mermaid/src/diagrams/user-journey/journeyRenderer.ts
index bb3386bfc..75a441d31 100644
--- a/packages/mermaid/src/diagrams/user-journey/journeyRenderer.ts
+++ b/packages/mermaid/src/diagrams/user-journey/journeyRenderer.ts
@@ -22,6 +22,10 @@ function drawActorLegend(diagram) {
   maxWidth = 0;
   let yPos = 60;
 
+  if (isNaN(maxLabelWidth)) {
+    throw new Error('maxLabelWidth must be a number');
+  }
+
   Object.keys(actors).forEach((person) => {
     const colour = actors[person].color;
     const circleData = {