diff --git a/lib/core/common.py b/lib/core/common.py
index eac6f812c..97bd7632e 100755
--- a/lib/core/common.py
+++ b/lib/core/common.py
@@ -2832,10 +2832,11 @@ def showHttpErrorCodes():
           if code in httplib.responses else '?', count) \
           for code, count in kb.httpErrorCodes.items())
         logger.warn(warnMsg)
-        if any(str(_).startswith('4') or str(_).startswith('5') for _ in kb.httpErrorCodes.keys()):
-            msg = "too many 4xx and/or 5xx HTTP error codes "
-            msg += "usually means that some kind of protection is involved (e.g. WAF)"
-            logger.warn(msg)
+        if not kb.injections:
+            if any(str(_).startswith('4') or str(_).startswith('5') for _ in kb.httpErrorCodes.keys()):
+                msg = "too many 4xx and/or 5xx HTTP error codes "
+                msg += "could mean that some kind of protection is involved (e.g. WAF)"
+                logger.warn(msg)
 
 def openFile(filename, mode='r', encoding=UNICODE_ENCODING, errors="replace"):
     """