diff --git a/lensfun.spec b/lensfun.spec
index b8774db..8c582d0 100644
--- a/lensfun.spec
+++ b/lensfun.spec
@@ -6,7 +6,7 @@
 Name:    lensfun
 Version: 0.3.2
 Summary: Library to rectify defects introduced by photographic lenses
-Release: 30%{?dist}
+Release: 31%{?dist}
 
 License: LGPLv3 and CC-BY-SA
 URL: https://lensfun.github.io/
@@ -27,6 +27,7 @@ Patch866: 0866-Pull-isnan-into-std-namespace-include-cmath-not-math.patch
 # install manpages only when INSTALL_HELPER_SCRIPTS=ON
 Patch200: lensfun-0.3.2-INSTALL_HELPER_SCRIPTS.patch
 
+BuildRequires: make
 BuildRequires: cmake >= 2.8
 BuildRequires: doxygen
 BuildRequires: gcc
@@ -166,6 +167,9 @@ export CTEST_OUTPUT_ON_FAILURE=1
 
 
 %changelog
+* Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 0.3.2-31
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
 * Mon Sep 07 2020 Than Ngo <than@redhat.com> - 0.3.2-30
 - Fix FTBFS