diff --git a/lemur/certificates/views.py b/lemur/certificates/views.py
index 4436b0b2..009d1c16 100644
--- a/lemur/certificates/views.py
+++ b/lemur/certificates/views.py
@@ -78,9 +78,11 @@ def get_domains_from_options(options):
     :return:
     """
     domains = [options['commonName']]
-    for k, v in options['extensions']['subAltNames']['names']:
-        if k == 'DNSName':
-            domains.append(v)
+    if options.get('extensions'):
+        if options['extensions'].get('subAltNames'):
+            for k, v in options['extensions']['subAltNames']['names']:
+                if k == 'DNSName':
+                    domains.append(v)
     return domains