diff --git a/LBXScan/LBXZXing/LBXZXCapture.m b/LBXScan/LBXZXing/LBXZXCapture.m
index 085d185..c62d231 100755
--- a/LBXScan/LBXZXing/LBXZXCapture.m
+++ b/LBXScan/LBXZXing/LBXZXCapture.m
@@ -202,6 +202,7 @@ - (void)changeTorch
             break;
     }
     
+    if (![self.input.device isTorchModeSupported:torch]) torch = AVCaptureTorchModeAuto;
     
     [self.input.device lockForConfiguration:nil];
     self.input.device.torchMode = torch;