diff --git a/lib/core/settings.py b/lib/core/settings.py
index 371b84e9a..e38daea62 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -366,7 +366,7 @@ REFLECTIVE_MISS_THRESHOLD = 20
 HTML_TITLE_REGEX = "<title>(?P<result>[^<]+)</title>"
 
 # Chars used to quickly distinguish if the user provided tainted parameter values
-DUMMY_SQL_INJECTION_CHARS = ";()\"'"
+DUMMY_SQL_INJECTION_CHARS = ";()'"
 
 # Extensions skipped by crawler
 CRAWL_EXCLUDE_EXTENSIONS = ("gif","jpg","jar","tif","bmp","war","ear","mpg","wmv","mpeg","scm","iso","dmp","dll","cab","so","avi","bin","exe","iso","tar","png","pdf","ps","mp3","zip","rar","gz")