diff --git a/packages/mediacenter/xbmc-addon-xvdr/build b/packages/mediacenter/xbmc-addon-xvdr/build
index 3966e63a04..f3262a0183 100755
--- a/packages/mediacenter/xbmc-addon-xvdr/build
+++ b/packages/mediacenter/xbmc-addon-xvdr/build
@@ -28,7 +28,7 @@ cd $PKG_BUILD
   touch NEWS AUTHORS ChangeLog
   do_autoreconf
 
-CXXFLAGS="-DZLIB_INTERNAL=1" \
+CXXFLAGS="$CXXFLAGS -DZLIB_INTERNAL=1" \
 ./configure --host=$TARGET_NAME \
             --build=$HOST_NAME \
             --prefix=/usr/share/xbmc \