diff --git a/motif.spec b/motif.spec
index 178ffeb76f7d5255486298b15edd8aa09a488043..b548ab0c5efddf6c0b4af83480e213dc58de5225 100644
--- a/motif.spec
+++ b/motif.spec
@@ -1,6 +1,6 @@
 Name:          motif
 Version:       2.3.8
-Release:       3
+Release:       4
 Summary:       Run-time libraries and programs
 License:       LGPLv2+
 URL:           https://motif.ics.com/
@@ -41,7 +41,7 @@ This package includes man files for %{name}.
 %prep
 %autosetup -p1
 sed -i 's/-fno-strict-aliasing/-fstack-protector-strong -fno-strict-aliasing/g' configure.ac
-%ifarch loongarch64
+%ifarch loongarch64 riscv64
 %_update_config_guess
 %_update_config_sub
 %endif
@@ -86,6 +86,9 @@ rm -f $RPM_BUILD_ROOT%{_libdir}/*.la
 %{_mandir}/man*/*
 
 %changelog
+* Wed Jun 28 2023 laokz <zhangkai@iscas.ac.cn> - 2.3.8-4
+- update config.guess and config.sub for riscv64
+
 * Tue Dec 13 2022 huajingyun <huajingyun@loongson.cn> - 2.3.8-3
 - update config.guess and config.sub for loongarch64