diff --git a/common/lib/xmodule/xmodule/lti_module.py b/common/lib/xmodule/xmodule/lti_module.py
index 962d7782ff..bc07cea97e 100644
--- a/common/lib/xmodule/xmodule/lti_module.py
+++ b/common/lib/xmodule/xmodule/lti_module.py
@@ -21,6 +21,10 @@ from xblock.core import String, Scope, List
 log = logging.getLogger(__name__)
 
 
+class LTIError(Exception):
+    pass
+
+
 class LTIFields(object):
     """
     Fields to define and obtain LTI tool from provider are set here,