diff --git a/lmdb.spec b/lmdb.spec
index 40a56d5..1de7ccd 100644
--- a/lmdb.spec
+++ b/lmdb.spec
@@ -65,7 +65,7 @@ popd
 %install
 pushd %{archive_path}
 # make install expects existing directory tree
-mkdir -m 0755 -p %{buildroot}%{_prefix}{/bin,/include}
+mkdir -m 0755 -p %{buildroot}{%{_bindir},%{_includedir}}
 mkdir -m 0755 -p %{buildroot}{%{_libdir},%{_mandir}/man1}
 make DESTDIR=%{buildroot} prefix=%{_prefix} libdir=%{_libdir} mandir=%{_mandir} install
 popd