diff --git a/packages/vitest/src/node/execute.ts b/packages/vitest/src/node/execute.ts
index 13591d46c..fd245c7a4 100644
--- a/packages/vitest/src/node/execute.ts
+++ b/packages/vitest/src/node/execute.ts
@@ -94,7 +94,7 @@ export async function executeInViteNode(options: ExecuteOptions) {
       return stubRequests[id]
 
     const transformed = await fetch(id)
-    if (!transformed)
+    if (transformed == null)
       throw new Error(`failed to load ${id}`)
 
     // disambiguate the `<UNIT>:/` on windows: see nodejs/node#31710
diff --git a/packages/vitest/src/reporters/error.ts b/packages/vitest/src/reporters/error.ts
index 40cc83e1c..5b667e5c2 100644
--- a/packages/vitest/src/reporters/error.ts
+++ b/packages/vitest/src/reporters/error.ts
@@ -178,6 +178,10 @@ export function posToNumber(
   const lines = source.split(splitRE)
   const { line, column } = pos
   let start = 0
+
+  if (line > lines.length)
+    return source.length
+
   for (let i = 0; i < line - 1; i++)
     start += lines[i].length + 1