diff --git a/m4.spec b/m4.spec
index aa2241d2e5932aa7b357b2653155353cb70d9e48..4258d91b0f3dbd9b428da4b0702998549dd4f993 100644
--- a/m4.spec
+++ b/m4.spec
@@ -1,6 +1,6 @@
 Name:           m4
 Version:        1.4.18
-Release:        16
+Release:        17
 Summary:        A GNU implementation of macro processor
 License:        GPLv3+
 URL:            https://www.gnu.org/software/m4/
@@ -30,9 +30,6 @@ This package provides help document for m4.
 
 %build
 autoreconf -ivf
-%ifarch aarch64
-CFLAGS="$RPM_OPT_FLAGS -fsigned-char"
-%endif
 %configure
 %make_build
 
@@ -41,6 +38,9 @@ CFLAGS="$RPM_OPT_FLAGS -fsigned-char"
 rm -rf %{buildroot}%{_infodir}/dir
 
 %check
+%ifarch aarch64
+CFLAGS="$RPM_OPT_FLAGS -fsigned-char"
+%endif
 make check
 
 %files
@@ -55,6 +55,12 @@ make check
 %{_infodir}/m4*
 
 %changelog
+* Tue Dec 21 2021 shixuantong <shixuantong@huawei.com> - 1.4.18-17
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:add -fsigned-char to %check
+
 * Tue Aug 10 2021 shixuantong <shixuantong@huawei.com> - 1.4.18-16
 - Type:bugfix
 - ID:NA