diff --git a/gtengine.spec b/gtengine.spec
index acb9837..39cdf0e 100644
--- a/gtengine.spec
+++ b/gtengine.spec
@@ -3,7 +3,7 @@
 Name: gtengine
 Summary: Library for computations in mathematics, graphics, image analysis, and physics
 Version:  3.12
-Release:  1%{?dist}
+Release:  2%{?dist}
 License:  Boost
 URL: http://www.geometrictools.com
 Source0:  http://www.geometrictools.com/Downloads/GeometricToolsEngine3p12.zip
@@ -139,6 +139,9 @@ EOF
 %{_libexecdir}/%{name}/
 
 %changelog
+* Fri Jul 13 2018 Fedora Release Engineering <releng@fedoraproject.org> - 3.12-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild
+
 * Sun May 20 2018 Antonio Trande <sagitter@fedoraproject.org> 3.12-1
 - Update to 3.12