diff --git a/src/robot/Robot.ts b/src/robot/Robot.ts
index a33f4ad..262b7be 100644
--- a/src/robot/Robot.ts
+++ b/src/robot/Robot.ts
@@ -223,7 +223,9 @@ export class Robot {
     @wait('playerActTime')
     private async selectPet() {
         let data = await assistantUtil.selectPet(this.player, this.room.state);
-        this.reply('select_pet_c2s', data);
+        if (data) {
+            this.reply('select_pet_c2s', data);
+        }
     }
 
 
diff --git a/src/robot/RobotClient.ts b/src/robot/RobotClient.ts
index 183931e..b268ab3 100644
--- a/src/robot/RobotClient.ts
+++ b/src/robot/RobotClient.ts
@@ -230,7 +230,9 @@ export class RobotClient implements Client {
     @wait('playerActTime')
     private async selectPet() {
         let data = await assistantUtil.selectPet(this.selfPlayer, this.svrstate);
-        this.reply('select_pet_c2s', data)
+        if (data) {
+            this.reply('select_pet_c2s', data);
+        }
     }
 
 }
diff --git a/src/utils/assistant.util.ts b/src/utils/assistant.util.ts
index 3e900c2..f7ebec9 100644
--- a/src/utils/assistant.util.ts
+++ b/src/utils/assistant.util.ts
@@ -170,10 +170,7 @@ let assistantUtil = {
             result = spellCards.randomOne();
         }
         if (!result) {
-            return {
-                card: result.id,
-                errcode: 1,
-            };
+            return null;
         }
         let targetType: SkillTargetType = CfgMan.getTargetByCard(result.effect);
         let targetPlayer;