diff --git a/ocaml-labltk.spec b/ocaml-labltk.spec
index e7ea43ac05f7869678673fc55d8989c9627efb28..a8ec0d042a210e9a636ad36bbe24ebdc6e94c5e6 100644
--- a/ocaml-labltk.spec
+++ b/ocaml-labltk.spec
@@ -1,7 +1,7 @@
-%define anolis_release 1
+%define anolis_release 2
 
 %undefine _package_note_flags
-%ifarch %{ocaml_native_compiler}
+%ifnarch sw_64
 %global native_compiler 1
 %else
 %global native_compiler 0
@@ -62,12 +62,12 @@ echo -e 'all:\ninstall:\n' > browser/Makefile
 # Build does not work in parallel.
 unset MAKEFLAGS
 
-%if !%{native_compiler}
-make byte
-%else
+%if %{native_compiler}
 make all opt \
      SHAREDCCCOMPOPTS="%{optflags} -fPIC" \
      TK_LINK="%{__global_ldflags} -ltk8.6 -ltcl8.6"
+%else
+make byte
 %endif
 
 %install
@@ -115,5 +115,8 @@ install -m 0644 camltk/*.o $RPM_BUILD_ROOT%{_libdir}/ocaml/labltk
 %doc Changes README.mlTk
 
 %changelog
+* Tue Mar 11 2025 Chunchao Zhang <chunchao@nfschina.com> - 8.06.13-2
+- Add sw_64 support
+
 * Mon Mar 20 2023 Yuanhong Peng <yummypeng@linux.alibaba.com> - 8.06.13-1
 - Init from upstream