diff --git a/app/controllers/concerns/work_items_collections.rb b/app/controllers/concerns/work_items_collections.rb
index 59283fb1b5bffd1e439757b8b7ccae3a15e329cd..2df2734969f6e21ef0b76d970202be4a649dc134 100644
--- a/app/controllers/concerns/work_items_collections.rb
+++ b/app/controllers/concerns/work_items_collections.rb
@@ -36,6 +36,14 @@ def work_items_for_calendar
   def finder_options
     work_items_collection_params[:state] = (params.permit([:state])[:state].presence || default_state)
 
+    # Handle the translation of the type param, since the finder expects :issue_types
+    types = params.permit(type: [])[:type]
+    work_items_collection_params[:issue_types] = types if types
+
+    if work_items_collection_params.dig(:not, :type)
+      work_items_collection_params[:not][:issue_types] = work_items_collection_params[:not].delete(:type)
+    end
+
     options = {
       scope: params.permit([:scope])[:scope],
       state: work_items_collection_params[:state],
diff --git a/spec/controllers/concerns/work_items_collections_spec.rb b/spec/controllers/concerns/work_items_collections_spec.rb
index a10b242f6e32a05f86401997af230e586d21039d..be823035e7451b28f288c779734a99750ed3d6a0 100644
--- a/spec/controllers/concerns/work_items_collections_spec.rb
+++ b/spec/controllers/concerns/work_items_collections_spec.rb
@@ -116,5 +116,21 @@ def finder_type
         })
       end
     end
+
+    context 'with type filtering' do
+      let(:params) { { type: %w[task incident] } }
+
+      it 'mutates the search into a filter by type' do
+        is_expected.to include({ issue_types: %w[task incident] })
+      end
+    end
+
+    context 'with negated type filtering' do
+      let(:params) { { not: { type: %w[task incident] } } }
+
+      it 'mutates the search into a filter by type' do
+        is_expected.to include({ not: { issue_types: %w[task incident] } })
+      end
+    end
   end
 end