diff --git a/packages/runs/src/paths.mjs b/packages/runs/src/paths.mjs
index 1dbb5539..f7c5f4ea 100644
--- a/packages/runs/src/paths.mjs
+++ b/packages/runs/src/paths.mjs
@@ -43,7 +43,8 @@ export function readJsonObject(dataRoot, ...parts) {
     if (file === null) return null;
     const value = JSON.parse(fs.readFileSync(file, "utf8"));
     return typeof value === "object" && value !== null && !Array.isArray(value) ? value : null;
-  } catch {
+  } catch (error) {
+    if (error instanceof RunsError) throw error;
     return null;
   }
 }