diff --git a/lib/controller/checks.py b/lib/controller/checks.py
index 09baa7cd1..b117a284c 100644
--- a/lib/controller/checks.py
+++ b/lib/controller/checks.py
@@ -768,7 +768,7 @@ def heuristicCheckSqlInjection(place, parameter):
 
     if casting:
         errMsg = "possible %s casting " % ("integer" if origValue.isdigit() else "type")
-        errMsg += "detected (e.g. $%s=intval($_REQUEST('%s'))) " % (parameter, parameter)
+        errMsg += "detected (e.g. \"$%s=intval($_REQUEST('%s'))\") " % (parameter, parameter)
         errMsg += "at the back-end web application"
         logger.error(errMsg)