diff --git a/rpm/kernel-module-subpackage b/rpm/kernel-module-subpackage
index 196a995..749ed17 100644
--- a/rpm/kernel-module-subpackage
+++ b/rpm/kernel-module-subpackage
@@ -1,5 +1,5 @@
 %package -n %{-n*}-kmp-%1
-%define _this_kmp_kernel_version k%(echo %2 | sed -r 'y/-/_/; s/^(2\.6\.[0-9]+)_/\\1.0_/; # use 2.6.x.0 for mainline kernels')
+%define _this_kmp_kernel_version k%(echo %2 | sed -r 'y/-/_/')
 %define _this_kmp_version %{-v*}_%_this_kmp_kernel_version
 Version: %_this_kmp_version
 Release: %{-r*}