diff --git a/prebuilt/common/bin/backuptool.sh b/prebuilt/common/bin/backuptool.sh
index 2b8fd82..65cf43a 100755
--- a/prebuilt/common/bin/backuptool.sh
+++ b/prebuilt/common/bin/backuptool.sh
@@ -91,7 +91,7 @@
       then
          echo "Skipping odexed apk $1";
       else
-         cp $1 $C/$F
+         cp -p $1 $C/$F
       fi
    fi
 }