diff --git a/modules/marketing_email/marketing.py b/modules/marketing_email/marketing.py
index 2fb5f3641e..92f73a2020 100644
--- a/modules/marketing_email/marketing.py
+++ b/modules/marketing_email/marketing.py
@@ -151,7 +151,10 @@ class Email(DeactivableMixin, ModelSQL, ModelView):
     def get_email_subscribe_url(self, url=None):
         if url is None:
             url = config.get('marketing', 'email_subscribe_url')
-        return _add_params(url, token=self.email_token)
+        if url is not None:
+            return _add_params(url, token=self.email_token)
+        else:
+            return ''
 
     @classmethod
     def subscribe_url(cls, url):
@@ -183,7 +186,10 @@ class Email(DeactivableMixin, ModelSQL, ModelView):
     def get_email_unsubscribe_url(self, url=None):
         if url is None:
             url = config.get('marketing', 'email_unsubscribe_url')
-        return _add_params(url, token=self.email_token)
+        if url is not None:
+            return _add_params(url, token=self.email_token)
+        else:
+            return ''
 
     @classmethod
     def unsubscribe_url(cls, url):
diff --git a/modules/web_user/user.py b/modules/web_user/user.py
index bc22c8730a..df6f7cf2b4 100644
--- a/modules/web_user/user.py
+++ b/modules/web_user/user.py
@@ -245,7 +245,10 @@ class User(avatar_mixin(100), DeactivableMixin, ModelSQL, ModelView):
     def get_email_validation_url(self, url=None):
         if url is None:
             url = config.get('web', 'email_validation_url')
-        return _add_params(url, token=self.email_token)
+        if url is not None:
+            return _add_params(url, token=self.email_token)
+        else:
+            return ''
 
     @classmethod
     def validate_email_url(cls, url):
@@ -299,8 +302,11 @@ class User(avatar_mixin(100), DeactivableMixin, ModelSQL, ModelView):
     def get_email_reset_password_url(self, url=None):
         if url is None:
             url = config.get('web', 'reset_password_url')
-        return _add_params(
-            url, token=self.reset_password_token, email=self.email)
+        if url is not None:
+            return _add_params(
+                url, token=self.reset_password_token, email=self.email)
+        else:
+            return ''
 
     @classmethod
     def set_password_url(cls, url, password):