diff --git a/sombok.spec b/sombok.spec
index b130871..b8de40d 100644
--- a/sombok.spec
+++ b/sombok.spec
@@ -1,6 +1,6 @@
 Name:           sombok
 Version:        2.4.0
-Release:        13%{?dist}
+Release:        14%{?dist}
 Summary:        Unicode Text Segmentation Package
 License:        GPLv2+ or Artistic clarified
 URL:            http://sf.net/projects/linefold/
@@ -8,6 +8,7 @@ Source0:        https://github.com/hatukanezumi/sombok/archive/%{name}-%{version
 # A multilib-safe wrapper, bug #1853260
 Source1:        sombok.h
 
+BuildRequires: make
 BuildRequires:  libthai-devel
 BuildRequires:  autoconf
 BuildRequires:  automake
@@ -68,6 +69,9 @@ install -m 0644 %{SOURCE1} %{buildroot}/%{_includedir}/sombok.h
 
 
 %changelog
+* Wed Jan 27 2021 Fedora Release Engineering <releng@fedoraproject.org> - 2.4.0-14
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
 * Wed Jul 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 2.4.0-13
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild