diff --git a/biblib/tests/unit_tests/test_pagination.py b/biblib/tests/unit_tests/test_pagination.py
index 3ad0a29..fb98ad8 100644
--- a/biblib/tests/unit_tests/test_pagination.py
+++ b/biblib/tests/unit_tests/test_pagination.py
@@ -131,7 +131,7 @@ def test_library_pagination_user_supplied(self):
             })
 
 
-            r = self.client.get(url, headers={'X-Adsws-Uid': self.stub_user.absolute_uid})
+            r = self.client.get(url, headers={'X-api-uid': self.stub_user.absolute_uid})
 
 
 if __name__ == '__main__':
diff --git a/biblib/views/__init__.py b/biblib/views/__init__.py
index 9dd22d9..9d96e7b 100644
--- a/biblib/views/__init__.py
+++ b/biblib/views/__init__.py
@@ -5,7 +5,7 @@
 # Constant definitions
 DEFAULT_LIBRARY_NAME_PREFIX = 'Untitled Library'
 DEFAULT_LIBRARY_DESCRIPTION = 'My ADS library'
-USER_ID_KEYWORD = 'X-Adsws-Uid'
+USER_ID_KEYWORD = 'X-api-uid'
 
 from .base_view import BaseView
 from .user_view import UserView