diff --git a/LMAlertView/LMAlertView.m b/LMAlertView/LMAlertView.m
index 2ad40d3..e41e4f4 100644
--- a/LMAlertView/LMAlertView.m
+++ b/LMAlertView/LMAlertView.m
@@ -259,7 +259,9 @@ - (void)setupWithTitle:(NSString *)title message:(NSString *)message cancelButto
     [self.contentView addSubview:self.messageLabel];
     [self.contentView addSubview:self.buttonTableView];
     [self.contentView addSubview:self.otherTableView];
-    [self.contentView addSubview:lineView];
+    if (lineView) {	
+        [self.contentView addSubview:lineView];
+    }
 }
 
 - (void)setSize:(CGSize)size animated:(BOOL)animated