--- a/src/pyams_content/component/paragraph/interfaces/keynumber.py	Wed Apr 11 16:44:46 2018 +0200
+++ b/src/pyams_content/component/paragraph/interfaces/keynumber.py	Wed Apr 11 16:46:31 2018 +0200
@@ -9,7 +9,6 @@
 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
 # FOR A PARTICULAR PURPOSE.
 #
-from zope.schema._bootstrapfields import TextLine
 
 __docformat__ = 'restructuredtext'