diff --git a/app/controllers/admin/plans_controller.rb b/app/controllers/admin/plans_controller.rb
index d9132df..c7cce3b 100644
--- a/app/controllers/admin/plans_controller.rb
+++ b/app/controllers/admin/plans_controller.rb
@@ -42,7 +42,9 @@ module DiscoursePatrons
         begin
           plan = ::Stripe::Plan.retrieve(params[:id])
 
-          render_json_dump plan
+          serialized = plan.to_h.merge(currency: plan[:currency].upcase)
+
+          render_json_dump serialized
 
         rescue ::Stripe::InvalidRequestError => e
           return render_json_error e.message
diff --git a/assets/javascripts/discourse/controllers/admin-plugins-discourse-patrons-products-show-plans-show.js.es6 b/assets/javascripts/discourse/controllers/admin-plugins-discourse-patrons-products-show-plans-show.js.es6
index b0223f4..743b8c2 100644
--- a/assets/javascripts/discourse/controllers/admin-plugins-discourse-patrons-products-show-plans-show.js.es6
+++ b/assets/javascripts/discourse/controllers/admin-plugins-discourse-patrons-products-show-plans-show.js.es6
@@ -2,6 +2,9 @@ import computed from "ember-addons/ember-computed-decorators";
 import DiscourseURL from "discourse/lib/url";
 
 export default Ember.Controller.extend({
+  // Also defined in settings.
+  currencies: ['AUD', 'CAD', 'EUR', 'GBP', 'USD'],
+
   @computed("model.plan.isNew")
   planFieldDisabled(isNew) {
     return !isNew;
diff --git a/assets/javascripts/discourse/helpers/format-currency.js.es6 b/assets/javascripts/discourse/helpers/format-currency.js.es6
index afc5978..76fdc77 100644
--- a/assets/javascripts/discourse/helpers/format-currency.js.es6
+++ b/assets/javascripts/discourse/helpers/format-currency.js.es6
@@ -1,11 +1,13 @@
 export default Ember.Helper.helper(function(params) {
   let currencySign;
 
-  switch (Discourse.SiteSettings.discourse_patrons_currency) {
+  switch (params[0]) {
     case "EUR":
+    case "eur":
       currencySign = "€";
       break;
     case "GBP":
+    case "gbp":
       currencySign = "£";
       break;
     default:
diff --git a/assets/javascripts/discourse/routes/admin-plugins-discourse-patrons-products-show-plans-show.js.es6 b/assets/javascripts/discourse/routes/admin-plugins-discourse-patrons-products-show-plans-show.js.es6
index a4e17c9..bfbd22b 100644
--- a/assets/javascripts/discourse/routes/admin-plugins-discourse-patrons-products-show-plans-show.js.es6
+++ b/assets/javascripts/discourse/routes/admin-plugins-discourse-patrons-products-show-plans-show.js.es6
@@ -13,6 +13,7 @@ export default Discourse.Route.extend({
       plan = AdminPlan.create({
         active: true,
         isNew: true,
+        currency: Discourse.SiteSettings.discourse_patrons_currency,
         product: product.get("id")
       });
     } else {
diff --git a/assets/javascripts/discourse/templates/admin/plugins-discourse-patrons-products-show-plans-show.hbs b/assets/javascripts/discourse/templates/admin/plugins-discourse-patrons-products-show-plans-show.hbs
index c3f583c..869d670 100644
--- a/assets/javascripts/discourse/templates/admin/plugins-discourse-patrons-products-show-plans-show.hbs
+++ b/assets/javascripts/discourse/templates/admin/plugins-discourse-patrons-products-show-plans-show.hbs
@@ -22,7 +22,12 @@
   </p>
   <p>
     <label for="amount">{{i18n 'discourse_patrons.admin.plans.plan.amount'}}</label>
-    {{input type="text" name="name" value=model.plan.amountDollars disabled=planFieldDisabled}}
+    {{#if planFieldDisabled}}
+      {{input class="plan-amount plan-currency" disabled=true value=model.plan.currency}}
+    {{else}}
+      {{combo-box disabled=planFieldDisabled content=currencies value=model.plan.currency}}
+    {{/if}}
+    {{input class="plan-amount" type="text" name="name" value=model.plan.amountDollars disabled=planFieldDisabled}}
   </p>
   <p>
     <label for="trial">
diff --git a/assets/stylesheets/common/discourse-patrons.scss b/assets/stylesheets/common/discourse-patrons.scss
index 293b598..9c17d98 100644
--- a/assets/stylesheets/common/discourse-patrons.scss
+++ b/assets/stylesheets/common/discourse-patrons.scss
@@ -16,6 +16,14 @@ textarea[readonly] {
   }
 }
 
+.plan-amount {
+  position: relative;
+  top: 2px;
+}
+.plan-currency {
+  width: 70px;
+}
+
 .td-right {
   text-align: right;
 }
diff --git a/spec/requests/admin/plans_controller_spec.rb b/spec/requests/admin/plans_controller_spec.rb
index 229a156..f0cd25a 100644
--- a/spec/requests/admin/plans_controller_spec.rb
+++ b/spec/requests/admin/plans_controller_spec.rb
@@ -88,6 +88,20 @@ module DiscoursePatrons
           end
         end
 
+        describe "show" do
+          it "shows a plan" do
+            ::Stripe::Plan.expects(:retrieve).with('plan_12345')
+            get "/patrons/admin/plans/plan_12345.json"
+            expect(response.status).to eq 200
+          end
+
+          it "upcases the currency" do
+            ::Stripe::Plan.expects(:retrieve).with('plan_12345').returns(currency: 'aud')
+            get "/patrons/admin/plans/plan_12345.json"
+            expect(response.body).to eq '{"currency":"AUD"}'
+          end
+        end
+
         describe "create" do
           it "creates a plan with a nickname" do
             ::Stripe::Plan.expects(:create).with(has_entry(:nickname, 'Veg'))