diff --git a/tools/prepareBuild.sh b/tools/prepareBuild.sh
index 5d7ed24e..243b1983 100755
--- a/tools/prepareBuild.sh
+++ b/tools/prepareBuild.sh
@@ -28,10 +28,10 @@ _TOOLS_BASE_PATH=$(dirname $(readlink -f $0))
 _BASE_PATH=${_TOOLS_BASE_PATH}/..
 _TMP_PATH=${_BASE_PATH}/tmp
 
-_MAJOR=$(     git describe | sed 's,\([0-9]*\)\..*,\1,'                   )
-_MINOR=$(     git describe | sed 's,[0-9]*\.\([0-9]*\)\..*,\1,'           )
-_PATCH=$(( $( git describe | sed 's,[^x]*\.x[^0-9]*\([0-9]*\)[^0-9].*,\1,') + 0))
-_STAGE=$(     git describe | sed 's,.*\.x-\([^-]*\).*,\1,'                )
+_MAJOR=$( git describe | sed 's,\([0-9]*\)\..*,\1,'                     )
+_MINOR=$( git describe | sed 's,[0-9]*\.\([0-9]*\)\..*,\1,'             )
+_PATCH=$( git describe | sed 's,[0-9]*\.[0-9]*\.\([0-9]*\)[^0-9].*,\1,' )
+_STAGE=$( git describe | sed 's,[^-]*-\([^-]*\).*,\1,'                  )
 
 _VERSION="${_MAJOR}.${_MINOR}.${_PATCH}-${_STAGE}"