diff --git a/lib/core/common.py b/lib/core/common.py
index 0c90dbad9..ce75fa6a2 100644
--- a/lib/core/common.py
+++ b/lib/core/common.py
@@ -2506,7 +2506,7 @@ def removeReflectiveValues(content, payload, suppressWarning=False):
 
     retVal = content
 
-    if all([content, payload]) and kb.reflectiveMechanism:
+    if all([content, payload]) and isinstance(content, unicode) and kb.reflectiveMechanism:
         payload = urldecode(payload.replace(PAYLOAD_DELIMITER, ''))
 
         regex = filterStringValue(payload, r'[A-Za-z0-9]', REFLECTED_NON_ALPHA_NUM_REGEX)