diff --git a/app/src/components/templateEditor/language/languageUtils.ts b/app/src/components/templateEditor/language/languageUtils.ts
index 4ad75db916..c86c147af5 100644
--- a/app/src/components/templateEditor/language/languageUtils.ts
+++ b/app/src/components/templateEditor/language/languageUtils.ts
@@ -59,7 +59,7 @@ export const format = ({
    *
    * If a variable is not found in this object, it will be left as is.
    */
-  variables: Record<string, string | number | boolean>;
+  variables: Record<string, string | number | boolean | undefined>;
   /**
    * Runs after formatting the text but just before returning the result
    *