diff --git a/app/search_builders/concerns/iiif_print/allinson_flex_fields.rb b/app/search_builders/concerns/iiif_print/allinson_flex_fields.rb
new file mode 100644
index 00000000..8cf94aff
--- /dev/null
+++ b/app/search_builders/concerns/iiif_print/allinson_flex_fields.rb
@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+module IiifPrint
+  module AllinsonFlexFields
+    def include_allinson_flex_fields(solr_parameters)
+      return unless defined?(AllinsonFlex)
+
+      solr_parameters[:qf] += IiifPrint.allinson_flex_fields
+                                       .each_with_object([]) do |field, arr|
+        arr << (field.name + '_tesim') if field.is_a?(AllinsonFlex::ProfileProperty)
+      end
+                                       .join(' ')
+    end
+  end
+end
diff --git a/app/search_builders/concerns/iiif_print/iiif_search_builder_decorator.rb b/app/search_builders/concerns/iiif_print/iiif_search_builder_decorator.rb
new file mode 100644
index 00000000..c3c36bec
--- /dev/null
+++ b/app/search_builders/concerns/iiif_print/iiif_search_builder_decorator.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+# OVERRIDE BlacklightIiifSearch v1.0.0 to include AllinsonFlex fields in the search
+
+module IiifPrint
+  module IiifSearchBuilderDecorator
+    # NOTE: ::IiifSearchBuilder.default_processor_chain += [:include_allinson_flex_fields]
+    # is on the engine.rb file so this decorator is loaded before the `default_processor_chain` is set.
+    include IiifPrint::AllinsonFlexFields
+  end
+end
diff --git a/lib/iiif_print/catalog_search_builder.rb b/lib/iiif_print/catalog_search_builder.rb
index 506c6026..e230881a 100644
--- a/lib/iiif_print/catalog_search_builder.rb
+++ b/lib/iiif_print/catalog_search_builder.rb
@@ -11,12 +11,16 @@ class CatalogSearchBuilder < Hyrax::CatalogSearchBuilder
     include IiifPrint::HighlightSearchParams
     # TODO: Do we need the following as a module?  It hides the behavior
     include IiifPrint::ExcludeModels
+    include IiifPrint::AllinsonFlexFields
 
     # NOTE: If you are using advanced_search, the :exclude_models and :highlight_search_params must
     # be added after the advanced_search methods (which are not part of this gem).  In other tests,
     # we found that having the advanced search processing after the two aforementioned processors
     # resulted in improper evaluation of keyword querying.
-    self.default_processor_chain += [:exclude_models, :highlight_search_params, :show_parents_only]
+    self.default_processor_chain += [:exclude_models,
+                                     :highlight_search_params,
+                                     :show_parents_only,
+                                     :include_allinson_flex_fields]
 
     # rubocop:enable Naming/PredicateName
     def show_parents_only(solr_parameters)
diff --git a/lib/iiif_print/engine.rb b/lib/iiif_print/engine.rb
index 1330f20a..d24b78da 100644
--- a/lib/iiif_print/engine.rb
+++ b/lib/iiif_print/engine.rb
@@ -51,6 +51,8 @@ class Engine < ::Rails::Engine
       ::BlacklightIiifSearch::IiifSearchResponse.prepend(IiifPrint::IiifSearchResponseDecorator)
       ::BlacklightIiifSearch::IiifSearchAnnotation.prepend(IiifPrint::BlacklightIiifSearch::AnnotationDecorator)
       ::BlacklightIiifSearch::IiifSearch.prepend(IiifPrint::IiifSearchDecorator)
+      ::IiifSearchBuilder.prepend(IiifPrint::IiifSearchBuilderDecorator)
+      ::IiifSearchBuilder.default_processor_chain += [:include_allinson_flex_fields]
       Hyrax::Actors::FileSetActor.prepend(IiifPrint::Actors::FileSetActorDecorator)
 
       Hyrax.config do |config|