diff --git a/packages/hydrojudge/src/judge/default.ts b/packages/hydrojudge/src/judge/default.ts
index 59a521587..bc1ab5565 100644
--- a/packages/hydrojudge/src/judge/default.ts
+++ b/packages/hydrojudge/src/judge/default.ts
@@ -26,7 +26,7 @@ function judgeCase(c: NormalizedCase) {
             },
         );
         const {
-            code, time, memory, fileIds,
+            code, signalled, time, memory, fileIds,
         } = res;
         let { status } = res;
         let message: any = '';
@@ -50,7 +50,7 @@ function judgeCase(c: NormalizedCase) {
                 }));
             }
         } else if (status === STATUS.STATUS_RUNTIME_ERROR && code) {
-            if (code < 32) message = signals[code];
+            if (code < 32 && signalled) message = signals[code];
             else message = { message: 'Your program returned {0}.', params: [code] };
         }
         await Promise.allSettled(Object.values(res.fileIds).map((id) => del(id)));
diff --git a/packages/hydrojudge/src/judge/hack.ts b/packages/hydrojudge/src/judge/hack.ts
index 614e37fd3..d01417647 100644
--- a/packages/hydrojudge/src/judge/hack.ts
+++ b/packages/hydrojudge/src/judge/hack.ts
@@ -51,7 +51,9 @@ export async function judge(ctx: Context) {
             cacheStdoutAndStderr: true,
         },
     );
-    const { code, time, memory } = res;
+    const {
+        code, signalled, time, memory,
+    } = res;
     let { status } = res;
     let message: any = '';
     if (status === STATUS.STATUS_ACCEPTED) {
@@ -73,7 +75,7 @@ export async function judge(ctx: Context) {
             }));
         }
     } else if (status === STATUS.STATUS_RUNTIME_ERROR && code) {
-        if (code < 32) message = signals[code];
+        if (code < 32 && signalled) message = signals[code];
         else message = { message: 'Your program returned {0}.', params: [code] };
     }
     await Promise.allSettled(Object.values(res.fileIds).map((id) => del(id)));
diff --git a/packages/hydrojudge/src/judge/interactive.ts b/packages/hydrojudge/src/judge/interactive.ts
index 9a15751ef..bd9962c7c 100644
--- a/packages/hydrojudge/src/judge/interactive.ts
+++ b/packages/hydrojudge/src/judge/interactive.ts
@@ -13,7 +13,9 @@ function judgeCase(c: NormalizedCase) {
     return async (ctx: Context, ctxSubtask: ContextSubTask) => {
         ctx.executeInteractor.copyIn.in = c.input ? { src: c.input } : { content: '' };
         ctx.executeInteractor.copyIn.out = c.output ? { src: c.output } : { content: '' };
-        const [{ code, time, memory }, resInteractor] = await runPiped(
+        const [{
+            code, signalled, time, memory,
+        }, resInteractor] = await runPiped(
             {
                 execute: ctx.executeUser.execute,
                 copyIn: ctx.executeUser.copyIn,
@@ -39,7 +41,7 @@ function judgeCase(c: NormalizedCase) {
             status = STATUS.STATUS_MEMORY_LIMIT_EXCEEDED;
         } else if ((code && code !== 13/* Broken Pipe */) || (code === 13 && !resInteractor.code)) {
             status = STATUS.STATUS_RUNTIME_ERROR;
-            if (code < 32) message = signals[code];
+            if (code < 32 && signalled) message = signals[code];
             else message = { message: 'Your program returned {0}.', params: [code] };
         } else {
             const result = parse(resInteractor.stderr, c.score);
diff --git a/packages/hydrojudge/src/judge/run.ts b/packages/hydrojudge/src/judge/run.ts
index 0ca2277b0..52c893159 100644
--- a/packages/hydrojudge/src/judge/run.ts
+++ b/packages/hydrojudge/src/judge/run.ts
@@ -57,7 +57,9 @@ export const judge = async (ctx: Context) => {
         },
         1,
     );
-    const { code, time, memory } = res;
+    const {
+        code, signalled, time, memory,
+    } = res;
     let { status } = res;
     const message: string[] = [];
     if (time > parseTimeMS(ctx.config.time || '1s')) {
@@ -66,7 +68,7 @@ export const judge = async (ctx: Context) => {
         status = STATUS.STATUS_MEMORY_LIMIT_EXCEEDED;
     } else if (code) {
         status = STATUS.STATUS_RUNTIME_ERROR;
-        if (code < 32) message.push(`ExitCode: ${code} (${signals[code]})`);
+        if (code < 32 && signalled) message.push(`ExitCode: ${code} (${signals[code]})`);
         else message.push(`ExitCode: ${code}`);
     }
     message.push(res.stdout, res.stderr);
diff --git a/packages/hydrojudge/src/sandbox.ts b/packages/hydrojudge/src/sandbox.ts
index 5b22d7a6c..57b9ab6ce 100644
--- a/packages/hydrojudge/src/sandbox.ts
+++ b/packages/hydrojudge/src/sandbox.ts
@@ -45,6 +45,7 @@ interface Parameter {
 interface SandboxAdaptedResult {
     status: number;
     code: number;
+    signalled: boolean;
     /** in miliseconds */
     time: number;
     /** in kilobytes */
@@ -114,6 +115,7 @@ async function adaptResult(result: SandboxResult, params: Parameter): Promise<Sa
     // FIXME: Signalled?
     const ret: SandboxAdaptedResult = {
         status: statusMap.get(result.status) || STATUS.STATUS_ACCEPTED,
+        signalled: result.status === SandboxStatus.Signalled,
         time: result.time / 1000000 / rate,
         memory: result.memory / 1024,
         files: result.files,