diff --git a/lib/extends/commands/decidim/proposals/create_proposal_extends.rb b/lib/extends/commands/decidim/proposals/create_proposal_extends.rb
index da64fa8437..6a5c505a7e 100644
--- a/lib/extends/commands/decidim/proposals/create_proposal_extends.rb
+++ b/lib/extends/commands/decidim/proposals/create_proposal_extends.rb
@@ -31,6 +31,10 @@ def create_proposal
           proposal.longitude = form.longitude if form.longitude.present?
           proposal.add_coauthor(@current_user, user_group:)
           proposal.save!
+          # from decidim_awesome
+          # Update the proposal with the private body, to
+          # avoid tracebility on private fields.
+          proposal.update_private_body!(form.private_body) if form.private_body.present?
           @attached_to = proposal
           proposal
         end
diff --git a/spec/commands/decidim/proposals/create_proposal_spec.rb b/spec/commands/decidim/proposals/create_proposal_spec.rb
index 3b2cbc5e01..0321655635 100644
--- a/spec/commands/decidim/proposals/create_proposal_spec.rb
+++ b/spec/commands/decidim/proposals/create_proposal_spec.rb
@@ -157,6 +157,46 @@ module Proposals
             end
           end
 
+          context "with a private body" do
+            let(:form_params) do
+              {
+                title: "A reasonable proposal title",
+                body: "A reasonable proposal body",
+                user_group_id: user_group.try(:id),
+                private_body: "A valid private proposal body"
+              }
+            end
+            let(:proposal) { Decidim::Proposals::Proposal.last }
+
+            it "broadcasts :ok and creates a private_body" do
+              expect { command.call }.to broadcast(:ok)
+              expect(proposal.title["en"]).to eq("A reasonable proposal title")
+              expect(proposal.body["en"]).to eq("A reasonable proposal body")
+              expect(proposal.private_body).to eq("A valid private proposal body")
+              expect(proposal.extra_fields.private_body).to eq("A valid private proposal body")
+            end
+          end
+
+          context "with no private body" do
+            let(:form_params) do
+              {
+                title: "A reasonable proposal title",
+                body: "A reasonable proposal body",
+                user_group_id: user_group.try(:id),
+                private_body: nil
+              }
+            end
+            let(:proposal) { Decidim::Proposals::Proposal.last }
+
+            it "broadcasts :ok and creates a private_body" do
+              expect { command.call }.to broadcast(:ok)
+              expect(proposal.title["en"]).to eq("A reasonable proposal title")
+              expect(proposal.body["en"]).to eq("A reasonable proposal body")
+              expect(proposal.private_body).to be_nil
+              expect(proposal.extra_fields).to be_nil
+            end
+          end
+
           describe "the proposal limit excludes withdrawn proposals" do
             let(:component) do
               create(:proposal_component, settings: { "proposal_limit" => 1 })