diff --git a/mathgl.spec b/mathgl.spec
index 46b41cc..1baf1ba 100644
--- a/mathgl.spec
+++ b/mathgl.spec
@@ -19,7 +19,7 @@
 
 Name:          mathgl
 Version:       2.3.4
-Release:       5%{?dist}
+Release:       6%{?dist}
 Summary:       Cross-platform library for making high-quality scientific graphics
 Summary(de):   Plattformübergreifende Bibliothek für hochwertige wissenschaftliche Graphiken
 Summary(ru):   Библиотека для осуществления высококачественной визуализации данных
@@ -160,7 +160,7 @@ Requires:      octave >= 2.9.12
 BuildRequires: octave-devel
 
 %description -n octave-mathgl
-%{Summary}.
+%{summary}.
 %endif
 
 %package common
@@ -584,6 +584,9 @@ fi
 %endif
 
 %changelog
+* Thu Dec 08 Dmitrij S. Kryzhevich <kryzhev@ispms.ru> - 2.3.4-6
+- Fix description tag for octave-mathgl.
+
 * Wed Dec 07 2016 Orion Poplawski <orion@cora.nwra.com> - 2.3.4-5
 - Rebuild for octave 4.2