diff --git a/modules/dlfp/browser.py b/modules/dlfp/browser.py
index f909baf7..a237ae00 100644
--- a/modules/dlfp/browser.py
+++ b/modules/dlfp/browser.py
@@ -195,7 +195,7 @@ class DLFP(BaseBrowser):
         return None
 
     def login(self):
-        if self.username:
+        if self.username is None:
             return
 
         # not usefull for the moment