diff --git a/calibre_opds/calibre_opds.crt b/calibre_opds/calibre_opds.crt
new file mode 100644
index 0000000..2e4d680
--- /dev/null
+++ b/calibre_opds/calibre_opds.crt
@@ -0,0 +1,24 @@
+-----BEGIN CERTIFICATE-----
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