diff --git a/mutt.changes b/mutt.changes
index b392332..0e61389 100644
--- a/mutt.changes
+++ b/mutt.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Sun Apr 30 05:03:43 UTC 2017 - bwiedemann@suse.com
+
+- call gzip -n to make build more reproducible
+
 -------------------------------------------------------------------
 Sat Apr 29 16:14:43 UTC 2017 - werner@suse.de
 
diff --git a/mutt.spec b/mutt.spec
index 9c0c978..9d7788c 100644
--- a/mutt.spec
+++ b/mutt.spec
@@ -242,7 +242,7 @@ make -C doc
 %install
 make install DESTDIR=%{buildroot}
 install -m 755 %{S:1} %{buildroot}%{_bindir}
-gzip -9 doc/manu*.txt
+gzip -n -9 doc/manu*.txt
 rm -f contrib/Makefile*
 # datadir not automatically created:
 mkdir -p %{buildroot}%{_datadir}/mutt