diff --git a/master.inc b/master.inc
index 1ebf4f8..f51c82b 100644
--- a/master.inc
+++ b/master.inc
@@ -95,12 +95,16 @@ export LLVM=1 AR=llvm-ar CC=clang HOSTAR=llvm-ar HOSTCC=clang HOSTCXX=clang++ HO
 [ -f .config ] && rm -vf .config*
 %{make} distclean
 
+%if "%{kname}" == "stable" || "%{kname}" == "lts"
+%{make} defconfig
+%else
 cp %{SOURCE3} .config
 
 tar -xf %{SOURCE2} -C .
 cp -vr kernel-tfg/{configure-linux.sh,extra-configs} .
 rm -rf kernel-tfg/
 ./configure-linux.sh
+%endif
 
 %build
 %{make} PYTHON=%{__python3} %{make_targets}