diff --git a/nbdkit.spec b/nbdkit.spec
index 2a8b97a..b7b2561 100644
--- a/nbdkit.spec
+++ b/nbdkit.spec
@@ -5,7 +5,7 @@
 %endif
 
 Name:           nbdkit
-Version:        1.1.14
+Version:        1.1.15
 Release:        1%{?dist}
 Summary:        NBD server
 
@@ -15,6 +15,7 @@ URL:            https://github.com/libguestfs/nbdkit
 Source0:        http://libguestfs.org/download/nbdkit/%{name}-%{version}.tar.gz
 
 BuildRequires:  /usr/bin/pod2man
+BuildRequires:  gnutls-devel
 %if 0%{?have_libguestfs}
 BuildRequires:  libguestfs-devel
 %endif
@@ -269,7 +270,7 @@ copy="$(mktemp -d)"
 cp -a . "$copy"
 mv "$copy" python3
 
-%configure --disable-static
+%configure --disable-static --with-tls-priority=@NBDKIT,SYSTEM
 make %{?_smp_mflags}
 
 pushd python3
@@ -454,6 +455,10 @@ popd
 
 
 %changelog
+* Wed Sep 27 2017 Richard W.M. Jones <rjones@redhat.com> - 1.1.15-1
+- New upstream version 1.1.15.
+- Enable TLS support.
+
 * Fri Sep 01 2017 Richard W.M. Jones <rjones@redhat.com> - 1.1.14-1
 - New upstream version 1.1.14.
 
diff --git a/sources b/sources
index 67e77d2..a15bd8f 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (nbdkit-1.1.14.tar.gz) = 94412f35a9f397fe68a98211b92697f22f414a4629ed476dedb0b925f42ea2b1d94ba3905e26f4ec702e4224704c6f2187e490e11b3a53af122ba3e08deea034
+SHA512 (nbdkit-1.1.15.tar.gz) = 731881e5fd13f9d684500c76b9f7d3ab1787468240a80714df0b7350e7922d96a2747de44e82427ed1da6d6559f473b32f906b2b9b57ad75095732d1897b83c5