--- a/src/pyams_content/component/paragraph/zmi/milestone.py	Tue Nov 27 15:36:41 2018 +0100
+++ b/src/pyams_content/component/paragraph/zmi/milestone.py	Tue Nov 27 15:37:04 2018 +0100
@@ -23,8 +23,8 @@
 from zope.interface import Interface, implementer
 from zope.schema.vocabulary import getVocabularyRegistry
 
-from pyams_content.component.paragraph.interfaces import IParagraphContainer, IParagraphContainerTarget, \
-    PARAGRAPH_HIDDEN_FIELDS
+from pyams_content.component.paragraph.interfaces import CONTENT_PARAGRAPHS_VOCABULARY, IParagraphContainer, \
+    IParagraphContainerTarget, PARAGRAPH_HIDDEN_FIELDS
 from pyams_content.component.paragraph.interfaces.milestone import IMilestone, IMilestoneContainer, \
     IMilestoneContainerTarget, IMilestoneParagraph, MILESTONE_PARAGRAPH_TYPE
 from pyams_content.component.paragraph.milestone import Milestone, MilestoneParagraph
@@ -268,7 +268,7 @@
         if target is None:
             return self.defaultValue
         try:
-            vocabulary = getVocabularyRegistry().get(obj, 'PyAMS content paragraphs')
+            vocabulary = getVocabularyRegistry().get(obj, CONTENT_PARAGRAPHS_VOCABULARY)
             return vocabulary.getTermByToken(obj.anchor).title
         except LookupError:
             return self.request.localizer.translate(_("(missing paragraph)")).format(obj.anchor)