diff --git a/lib/core/option.py b/lib/core/option.py
index bad824008..52a6fb8fb 100644
--- a/lib/core/option.py
+++ b/lib/core/option.py
@@ -2675,7 +2675,7 @@ def _basicOptionValidation():
             logger.warning(warnMsg)
 
 
-    if conf.cookieDel and len(conf.cookieDel):
+    if conf.cookieDel and len(conf.cookieDel) != 1:
         errMsg = "option '--cookie-del' should contain a single character (e.g. ';')"
         raise SqlmapSyntaxException(errMsg)