diff --git a/stream_alert/rule_processor/classifier.py b/stream_alert/rule_processor/classifier.py
index ed57d3775..d32fd5274 100644
--- a/stream_alert/rule_processor/classifier.py
+++ b/stream_alert/rule_processor/classifier.py
@@ -339,7 +339,7 @@ def _convert_type(cls, payload, schema):
                 if key == 'streamalert:envelope_keys' and not isinstance(payload[key], dict):
                     continue
 
-                cls._convert_type(payload[key], schema[key])
+                return cls._convert_type(payload[key], schema[key])
 
             elif isinstance(value, list):
                 pass