diff --git a/lmdb.spec b/lmdb.spec
index 72222ed..157281e 100644
--- a/lmdb.spec
+++ b/lmdb.spec
@@ -3,7 +3,7 @@
 
 Name:           lmdb
 Version:        0.9.24
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Memory-mapped key-value database
 
 License:        OpenLDAP
@@ -54,7 +54,8 @@ The %{name}-doc package contains automatically generated documentation for %{nam
 
 %build
 pushd %{archive_path}
-%make_build XCFLAGS="%{optflags}"
+%set_build_flags
+%make_build XCFLAGS="%{build_cflags}"
 # Build doxygen documentation
 doxygen
 # remove unpackaged files
@@ -116,6 +117,9 @@ popd
 
 
 %changelog
+* Mon Jun 15 2020 Jan Staněk <jstanek@redhat.com> - 0.9.24-3
+- Properly %%set_build_flags
+
 * Thu Apr 02 2020 Björn Esser <besser82@fedoraproject.org> - 0.9.24-2
 - Fix string quoting for rpm >= 4.16