diff --git a/keyBoard/Class/AiTalk/VC/KBAIHomeVC.m b/keyBoard/Class/AiTalk/VC/KBAIHomeVC.m
index eaf1242..5b686dc 100644
--- a/keyBoard/Class/AiTalk/VC/KBAIHomeVC.m
+++ b/keyBoard/Class/AiTalk/VC/KBAIHomeVC.m
@@ -245,7 +245,7 @@ static NSString * const KBAISelectedPersonaIdKey = @"KBAISelectedPersonaId";
         make.left.equalTo(self.view).offset(12);
         make.right.equalTo(self.view).offset(-12);
         self.commentInputBottomConstraint = make.bottom.equalTo(self.view).offset(100); // 初始在屏幕外
-        make.height.mas_equalTo(self.voiceInputBarHeight);
+        make.height.mas_equalTo(52);
     }];
 }