diff --git a/src/common/othello/ai/back.ts b/src/common/othello/ai/back.ts
index 55c77e6b3..c3a74a834 100644
--- a/src/common/othello/ai/back.ts
+++ b/src/common/othello/ai/back.ts
@@ -88,6 +88,8 @@ process.on('message', async msg => {
 			}
 		});
 		//#endregion
+
+		process.exit();
 	}
 
 	// 打たれたとき