diff --git a/app/models/concerns/iiif_print/set_child_flag.rb b/app/models/concerns/iiif_print/set_child_flag.rb
index 69e43d43..6e40c533 100644
--- a/app/models/concerns/iiif_print/set_child_flag.rb
+++ b/app/models/concerns/iiif_print/set_child_flag.rb
@@ -4,7 +4,7 @@ module RDF
   class CustomIsChildTerm < Vocabulary('http://id.loc.gov/vocabulary/identifiers/')
     property 'is_child'
   end
-  class SplitFromPdfIdTerm < Vocabulary('http://id.loc.gov/vocabulary/identifiers/')
+  class FromPdfIdTerm < Vocabulary('http://id.loc.gov/vocabulary/identifiers/')
     property 'split_from_pdf_id'
   end
 end
@@ -22,7 +22,7 @@ module SetChildFlag
                 index.as :stored_searchable
               end
       property :split_from_pdf_id,
-              predicate: ::RDF::SplitFromPdfIdTerm.split_from_pdf_id,
+              predicate: ::RDF::FromPdfIdTerm.split_from_pdf_id,
               multiple: false do |index|
                 index.as :stored_searchable
               end