From 517df933671618a7e0cab589fb33908c1a6a8247 Mon Sep 17 00:00:00 2001
From: Andrew Aquino <dawneraq@gmail.com>
Date: Mon, 6 Jul 2026 16:33:20 -0700
Subject: [PATCH] fix(site/src/pages/TemplateBuilder): allow TemplateCard to be
 selected if it has no variables (#27031)

Fixes a bug where if `base.variables` is not defined, clicking a
`TemplateCard` fails (no base template gets selected) and this error
gets logged:

```
Uncaught TypeError: Cannot read properties of undefined (reading 'length')
```

<img width="1840" height="1191" alt="image"
src="https://github.com/user-attachments/assets/b51a1f05-ab58-4b17-a126-350604f9832b"
/>
---
 site/src/pages/TemplateBuilder/BaseInfraSelectStep.tsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/site/src/pages/TemplateBuilder/BaseInfraSelectStep.tsx b/site/src/pages/TemplateBuilder/BaseInfraSelectStep.tsx
index 1128a0ec26..93ddbd6de5 100644
--- a/site/src/pages/TemplateBuilder/BaseInfraSelectStep.tsx
+++ b/site/src/pages/TemplateBuilder/BaseInfraSelectStep.tsx
@@ -23,7 +23,7 @@ function toSelectedBaseMeta(base: TemplateBuilderBase): SelectedBaseMeta {
 		iconUrl: base.icon,
 		os: base.os,
 		hasParameters:
-			base.variables.length > 0 && base.variables.some((v) => !v.sensitive),
+			base.variables?.length > 0 && base.variables?.some((v) => !v.sensitive),
 		hasPrerequisites: Boolean(base.prerequisites?.length),
 	};
 }