diff --git a/libmng.spec b/libmng.spec
index ce7c108..31b3d47 100644
--- a/libmng.spec
+++ b/libmng.spec
@@ -1,6 +1,6 @@
 Name: libmng
 Version: 2.0.3
-Release: 12%{?dist}
+Release: 13%{?dist}
 URL: http://www.libmng.com/
 Summary: Library for Multiple-image Network Graphics support
 # This is a common zlib variant.
@@ -11,6 +11,7 @@ BuildRequires: libjpeg-turbo-devel
 BuildRequires: lcms2-devel
 BuildRequires: libtool
 BuildRequires: autoconf
+BuildRequires: make
 
 %package devel
 Summary: Development files for the Multiple-image Network Graphics library
@@ -61,6 +62,9 @@ rm -f $RPM_BUILD_ROOT%{_libdir}/*.la
 %{_libdir}/pkgconfig/libmng.pc
 
 %changelog
+* Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 2.0.3-13
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
 * Tue Jul 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 2.0.3-12
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild