diff --git a/src/test/converter2.test.ts b/src/test/converter2.test.ts
index c22c67f47..5650dac6b 100644
--- a/src/test/converter2.test.ts
+++ b/src/test/converter2.test.ts
@@ -79,7 +79,7 @@ describe("Converter2", () => {
         } else {
             runTest(
                 name,
-                issueTests[`pre${entry.slice(2)}`],
+                issueTests[`pre${entry.slice(2)}` as `pre${bigint}${string}`],
                 join("issues", entry),
                 check as (
                     project: ProjectReflection,