diff --git a/SPECS/kernel-6.1.spec b/SPECS/kernel-6.1.spec
index b4cca3b..8a71765 100644
--- a/SPECS/kernel-6.1.spec
+++ b/SPECS/kernel-6.1.spec
@@ -3,17 +3,22 @@
 # Disable LTO in userspace packages.
 %global _lto_cflags %{nil}
 
+%ifarch x86_64
+%define with_toolchain_clang 1
+%define with_clang_lto 1
+%endif
+
 # Option to enable compiling with clang instead of gcc.
 %bcond_with toolchain_clang
 
-%if %{with toolchain_clang}
+%if %{with_toolchain_clang}
 %global toolchain clang
 %endif
 
 # Compile the kernel with LTO (only supported when building with clang).
 %bcond_with clang_lto
 
-%if %{with clang_lto} && %{without toolchain_clang}
+%if %{with_clang_lto} && %{without_toolchain_clang}
 {error:clang_lto requires --with toolchain_clang}
 %endif
 	
@@ -63,7 +68,7 @@
 %endif
 
 # Set pkg_release.
-%global pkg_release 4%{?buildid}.%{?lvc}%{?dist}.inferit.fuzzing
+%global pkg_release 5%{?buildid}.%{?lvc}%{?dist}.inferit.fuzzing
 
 # Architectures upon which we can sign the kernel
 # for secure boot authentication.
@@ -170,14 +175,12 @@
 %define _use_vdso 0
 %endif
 
-%if %{with toolchain_clang}
-%ifarch aarch64 noarch
-%global llvm_ias 0
-%else
+%if %{with_toolchain_clang}
+
 %global llvm_ias 1
-%endif
+
 %global clang_make_opts HOSTCC=clang CC=clang LLVM_IAS=%{llvm_ias}
-%if %{with clang_lto}
+%if %{with_clang_lto}
 %global clang_make_opts %{clang_make_opts} LD=ld.lld HOSTLD=ld.lld AR=llvm-ar NM=llvm-nm HOSTAR=llvm-ar HOSTNM=llvm-nm
 %endif
 %global make_opts %{make_opts} %{clang_make_opts}
@@ -1797,6 +1800,9 @@ fi
 %endif
 
 %changelog
+* Mon Feb 10 2025 Eduard Basov <ebasov@msvsphere-os.ru> - 6.1.124-5.lvc13.inferit.fuzzing
+- Change macros
+
 * Mon Feb 10 2025 Eduard Basov <ebasov@msvsphere-os.ru> - 6.1.124-4.lvc13.inferit.fuzzing
 - Added build ALL Kernel with clang