diff --git a/app/controllers/proposal_controller.rb b/app/controllers/proposal_controller.rb
index 5956f24f..a0659071 100644
--- a/app/controllers/proposal_controller.rb
+++ b/app/controllers/proposal_controller.rb
@@ -39,6 +39,16 @@ class ProposalController < ApplicationController
     @event.event_users.new(user: current_user,
                            event_role: 'speaker')
 
+    type_id = params[:event][:event_type_id].to_f
+    keynote_ids = EventType.where(title: 'Keynote').pluck(:id)
+
+    if keynote_ids.include? type_id
+      @event.errors.add(:event_type_id, 'You are not allowed to create a Keynote!')
+      flash[:error] = "Could not submit proposal: #{@event.errors.full_messages.join(', ')}"
+      render action: 'new'
+      return
+    end
+
     if !@event.save
       flash[:error] = "Could not submit proposal: #{@event.errors.full_messages.join(', ')}"
       render action: 'new'