diff --git a/libksysguard-5.13.90.tar.xz.sig b/libksysguard-5.13.90.tar.xz.sig
new file mode 100644
index 0000000..71192c0
--- /dev/null
+++ b/libksysguard-5.13.90.tar.xz.sig
@@ -0,0 +1,11 @@
+-----BEGIN PGP SIGNATURE-----
+
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+=01Wo
+-----END PGP SIGNATURE-----
diff --git a/libksysguard5.changes b/libksysguard5.changes
index e8e79a4..67693a4 100644
--- a/libksysguard5.changes
+++ b/libksysguard5.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Sat Sep 15 16:25:29 UTC 2018 - fabian@ritter-vogt.de
+
+- Add tarball signature and keyring containing keys of release managers
+  Jonathan Riddell and Bhushan Shah
+
 -------------------------------------------------------------------
 Thu Sep 13 17:25:02 UTC 2018 - fabian@ritter-vogt.de
 
diff --git a/libksysguard5.spec b/libksysguard5.spec
index 829f3dd..e542407 100644
--- a/libksysguard5.spec
+++ b/libksysguard5.spec
@@ -25,7 +25,11 @@ License:        GPL-2.0-or-later
 Group:          Development/Libraries/C and C++
 Url:            http://www.kde.org
 Source:         http://download.kde.org/unstable/plasma/%{version}/libksysguard-%{version}.tar.xz
-Source1:        baselibs.conf
+%if %{with lang}
+Source1:        http://download.kde.org/unstable/plasma/%{version}/libksysguard-%{version}.tar.xz.sig
+Source2:        plasma.keyring
+%endif
+Source3:        baselibs.conf
 BuildRequires:  extra-cmake-modules >= 1.2.0
 BuildRequires:  kf5-filesystem
 BuildRequires:  xz
diff --git a/plasma.keyring b/plasma.keyring
new file mode 100644
index 0000000..5e9faf8
Binary files /dev/null and b/plasma.keyring differ