diff --git a/plasma-sdk-5.13.90.tar.xz.sig b/plasma-sdk-5.13.90.tar.xz.sig
new file mode 100644
index 0000000..af9b829
--- /dev/null
+++ b/plasma-sdk-5.13.90.tar.xz.sig
@@ -0,0 +1,11 @@
+-----BEGIN PGP SIGNATURE-----
+
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+-----END PGP SIGNATURE-----
diff --git a/plasma.keyring b/plasma.keyring
new file mode 100644
index 0000000..5e9faf8
Binary files /dev/null and b/plasma.keyring differ
diff --git a/plasma5-sdk.changes b/plasma5-sdk.changes
index 3d2505d..e51de1c 100644
--- a/plasma5-sdk.changes
+++ b/plasma5-sdk.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 17:25:03 UTC 2018 - fabian@ritter-vogt.de
 
diff --git a/plasma5-sdk.spec b/plasma5-sdk.spec
index 70bc86e..b85cb29 100644
--- a/plasma5-sdk.spec
+++ b/plasma5-sdk.spec
@@ -25,6 +25,10 @@ License:        LGPL-2.0-or-later AND GPL-2.0-only
 Group:          System/GUI/KDE
 Url:            https://cgit.kde.org/plasma-sdk.git
 Source:         http://download.kde.org/unstable/plasma/%{version}/plasma-sdk-%{version}.tar.xz
+%if %{with lang}
+Source1:        http://download.kde.org/unstable/plasma/%{version}/plasma-sdk-%{version}.tar.xz.sig
+Source2:        plasma.keyring
+%endif
 BuildRequires:  breeze5-icons
 BuildRequires:  extra-cmake-modules >= 1.8.0
 BuildRequires:  kf5-filesystem