diff --git a/build.sh b/build.sh
index c10d0b1d..5de0a431 100755
--- a/build.sh
+++ b/build.sh
@@ -87,7 +87,7 @@ if [ "${1}" == "hw" ]; then
 	sed -i "s/HGImgProc/HwImgProc/g" HGScannerTmp.pro
     sed -i "s/logo.ico/Hanvon_logo1.ico/g" HGScannerTmp.pro
 elif [ "${1}" == "lsc" ]; then
-    sed -ibkp "s/OEM_HUAGAO/OEM_LISICHENG/g" HGScannerTmp.pro
+    sed -i "s/OEM_HUAGAO/OEM_LISICHENG/g" HGScannerTmp.pro
     sed -i "s/hgsane/lscsane/g" HGScannerTmp.pro
     sed -i "s/hgdriver/lscdriver/g" HGScannerTmp.pro
     sed -i "s/HGScanner/LscScanner/g" HGScannerTmp.pro