diff --git a/gnuradio.spec b/gnuradio.spec
index ec36fac..1cd85e7 100644
--- a/gnuradio.spec
+++ b/gnuradio.spec
@@ -20,7 +20,7 @@
 
 Name:		gnuradio
 Version:	3.7.9.1
-Release:	1%{?alphatag:.%{alphatag}}%{?dist}
+Release:	2%{?alphatag:.%{alphatag}}%{?dist}
 Summary:	Software defined radio framework
 
 Group:		Applications/Engineering
@@ -212,6 +212,9 @@ fi
 %{_datadir}/gnuradio/examples
 
 %changelog
+* Tue Feb 23 2016 Orion Poplawski <orion@cora.nwra.com> - 3.7.9.1-2
+- Rebuild for gsl 2.1
+
 * Wed Feb 10 2016 Jaroslav Škarvada <jskarvad@redhat.com> - 3.7.9.1-1
 - New version
   Resolves: rhbz#1306066