diff --git a/mutt.changes b/mutt.changes
index cf18436..2f75971 100644
--- a/mutt.changes
+++ b/mutt.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Thu Jul 13 10:38:57 UTC 2017 - olaf@aepfle.de
+
+- If built with gnutls, set ssl_ca_certificates_file to avoid
+  warning about "server cert signed using an insecure algorithm"
+
 -------------------------------------------------------------------
 Wed Jul 12 09:26:50 UTC 2017 - olaf@aepfle.de
 
diff --git a/mutt.spec b/mutt.spec
index 996cb03..744324b 100644
--- a/mutt.spec
+++ b/mutt.spec
@@ -147,6 +147,9 @@ rm -vf PATCHES*.orig
 cp %{S:2} .
 
 %build
+%if %{with mutt_gnutls}
+echo 'set ssl_ca_certificates_file="/etc/ssl/ca-bundle.pem"' >> doc/Muttrc.head
+%endif
 autoreconf -fi
   cflags ()
   {