diff --git a/certs/isrg-root-x1-cross-signed.pem b/certs/isrg-root-x1-cross-signed.pem
new file mode 100644
index 0000000..a788a40
--- /dev/null
+++ b/certs/isrg-root-x1-cross-signed.pem
@@ -0,0 +1,31 @@
+-----BEGIN CERTIFICATE----- 
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+-----END CERTIFICATE-----
diff --git a/certs/isrgrootx1.pem b/certs/isrgrootx1-self.pem
similarity index 100%
rename from certs/isrgrootx1.pem
rename to certs/isrgrootx1-self.pem
diff --git a/certs/trustid-x3-root.pem.txt b/certs/trustid-x3-root.pem
similarity index 100%
rename from certs/trustid-x3-root.pem.txt
rename to certs/trustid-x3-root.pem
diff --git a/gen-unifi-cert.sh b/gen-unifi-cert.sh
index 2c889ee..84a9f8a 100755
--- a/gen-unifi-cert.sh
+++ b/gen-unifi-cert.sh
@@ -127,35 +127,35 @@ else
   # ISRG Root X1
   cat > "${CATEMPFILE}" <<'_EOF'
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----
 _EOF