diff --git a/packages/hydrojudge/src/checkers.ts b/packages/hydrojudge/src/checkers.ts
index 50734b9b..01b190ab 100644
--- a/packages/hydrojudge/src/checkers.ts
+++ b/packages/hydrojudge/src/checkers.ts
@@ -188,7 +188,7 @@ const checkers: Record<string, Checker> = new Proxy({
     },
 
     async testlib(config) {
-        const { stderr, status } = await run(`${config.execute} /w/in /w/user_out /w/answer`, {
+        const { stderr, status, code } = await run(`${config.execute} /w/in /w/user_out /w/answer`, {
             copyIn: {
                 in: config.input,
                 user_out: config.user_stdout,
@@ -204,6 +204,13 @@ const checkers: Record<string, Checker> = new Proxy({
                 message: stderr,
             };
         }
+        if (status === STATUS.STATUS_RUNTIME_ERROR) {
+            return {
+                status: STATUS.STATUS_WRONG_ANSWER,
+                score: 0,
+                message: `Checker exited with code ${code}`,
+            };
+        }
         return parse(stderr, config.score);
     },
 }, {