diff --git a/web/.asset-version-state.json b/web/.asset-version-state.json
index 31aa1fc..62c8b4a 100644
--- a/web/.asset-version-state.json
+++ b/web/.asset-version-state.json
@@ -16,8 +16,8 @@
     "mtimeMs": 1783602619602.658
   },
   "ticket-order.js": {
-    "size": 32045,
-    "mtimeMs": 1783782910999.121
+    "size": 32083,
+    "mtimeMs": 1783783215957.1775
   },
   "ticket-search.js": {
     "size": 17269,
diff --git a/web/asset-versions.json b/web/asset-versions.json
index 4fb1f31..6dcce8e 100644
--- a/web/asset-versions.json
+++ b/web/asset-versions.json
@@ -3,7 +3,7 @@
   "blog.css": 2,
   "custom-dialog.js": 11,
   "public-status.js": 14,
-  "ticket-order.js": 20,
+  "ticket-order.js": 21,
   "ticket-search.js": 12,
   "ticket-route.js": 3,
   "index.js": 5,
diff --git a/web/ticket-order.html b/web/ticket-order.html
index c6340fb..66d3f2a 100644
--- a/web/ticket-order.html
+++ b/web/ticket-order.html
@@ -158,7 +158,7 @@
   </div>
 
   <script src="/custom-dialog.js?v=11"></script>
-  <script src="/ticket-order.js?v=20"></script>
+  <script src="/ticket-order.js?v=21"></script>
   <script src="/public-status.js?v=14"></script>
   <script>
     document.addEventListener('DOMContentLoaded', () => {
diff --git a/web/ticket-order.js b/web/ticket-order.js
index 9991178..4162f31 100644
--- a/web/ticket-order.js
+++ b/web/ticket-order.js
@@ -324,7 +324,9 @@
               `;
           }
 
-          const width = Math.max(560, Math.max(...allStations.map(c => stationXByCanonical[stationCanonicalByCode[c] || c] || 0)) + 120);
+          const allX = Object.values(stationXByCanonical);
+          const maxX = allX.length > 0 ? Math.max(...allX) : 0;
+          const width = Math.max(560, maxX + 120);
           const height = Math.max(260, baseY + currentLineIdx * lineGapY + 60);
           mapContainer.innerHTML = `<svg width="${width}" height="${height}" viewBox="0 0 ${width} ${height}">${svgContent}</svg>`;