diff --git a/apps/document_indexing/forms.py b/apps/document_indexing/forms.py
index c621b09ed6..90b0e6b158 100644
--- a/apps/document_indexing/forms.py
+++ b/apps/document_indexing/forms.py
@@ -11,6 +11,7 @@ class IndexForm(forms.ModelForm):
     """
     class Meta:
         model = Index
+        exclude = ('document_types',)
 
 
 class IndexTemplateNodeForm(forms.ModelForm):