diff --git a/src/utils/systemPromptType.ts b/src/utils/systemPromptType.ts
index c3efa6e..55f70a3 100644
--- a/src/utils/systemPromptType.ts
+++ b/src/utils/systemPromptType.ts
@@ -12,3 +12,4 @@ export type SystemPrompt = readonly string[] & {
 export function asSystemPrompt(value: readonly string[]): SystemPrompt {
   return value as SystemPrompt
 }
+