diff --git a/modules/cragr/api/browser.py b/modules/cragr/api/browser.py
index ee6e30b39638f6fd3c7abc8199b44dd850a2b412..a1d3ae291a81637e43693c114c1514c264966363 100644
--- a/modules/cragr/api/browser.py
+++ b/modules/cragr/api/browser.py
@@ -119,6 +119,9 @@ def deinit(self):
         self.netfinca.deinit()
 
     def do_login(self):
+        if not self.username or not self.password:
+            raise BrowserIncorrectPassword()
+
         # First we try to connect to the new website: if the connection
         # is on the old website, we will automatically redirected.
         website = self.website.replace('.fr', '')