diff --git a/Thunderbird-Setup-17.0.9esr.exe.sha1sum b/Thunderbird-Setup-17.0.9esr.exe.sha1sum
new file mode 100644
index 0000000..3273ab9
--- /dev/null
+++ b/Thunderbird-Setup-17.0.9esr.exe.sha1sum
@@ -0,0 +1 @@
+2f37c8a772a42620c95b9fb238d8509b8b28fda5  /home/mario/.opsi-dist-cache/mozilla.thunderbird-17.0.9/X86/Thunderbird-Setup-17.0.9esr.exe