diff --git a/lemur/plugins/lemur_acme/plugin.py b/lemur/plugins/lemur_acme/plugin.py
index 3fc1df61..16d61a0f 100644
--- a/lemur/plugins/lemur_acme/plugin.py
+++ b/lemur/plugins/lemur_acme/plugin.py
@@ -205,9 +205,15 @@ class AcmeHandler(object):
                 OpenSSL.crypto.FILETYPE_PEM, orderr.fullchain_pem
             ),
         ).decode()
-        pem_certificate_chain = orderr.fullchain_pem[
-            len(pem_certificate) :  # noqa
-        ].lstrip()
+
+        if current_app.config.get("IDENTRUST_CROSS_SIGNED_LE_ICA", False) \
+                and datetime.datetime.now() < datetime.datetime.strptime(
+                    current_app.config.get("IDENTRUST_CROSS_SIGNED_LE_ICA_EXPIRATION_DATE", "17/03/21"), '%d/%m/%y'):
+            pem_certificate_chain = current_app.config.get("IDENTRUST_CROSS_SIGNED_LE_ICA")
+        else:
+            pem_certificate_chain = orderr.fullchain_pem[
+                len(pem_certificate) :  # noqa
+            ].lstrip()
 
         current_app.logger.debug(
             "{0} {1}".format(type(pem_certificate), type(pem_certificate_chain))