diff --git a/plugins/discourse-subscriptions/app/controllers/discourse_subscriptions/admin/subscriptions_controller.rb b/plugins/discourse-subscriptions/app/controllers/discourse_subscriptions/admin/subscriptions_controller.rb
index a4250b539e2..18984c36e12 100644
--- a/plugins/discourse-subscriptions/app/controllers/discourse_subscriptions/admin/subscriptions_controller.rb
+++ b/plugins/discourse-subscriptions/app/controllers/discourse_subscriptions/admin/subscriptions_controller.rb
@@ -52,7 +52,7 @@ module DiscourseSubscriptions
       def destroy
         params.require(:id)
         begin
-          refund_subscription(params[:id]) if params[:refund]
+          refund_subscription(params[:id]) if ActiveModel::Type::Boolean.new.cast(params[:refund])
           subscription = ::Stripe::Subscription.cancel(params[:id])
 
           customer =
diff --git a/plugins/discourse-subscriptions/app/controllers/discourse_subscriptions/admin/subscriptions_controller.rb.lock b/plugins/discourse-subscriptions/app/controllers/discourse_subscriptions/admin/subscriptions_controller.rb.lock
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/plugins/discourse-subscriptions/spec/requests/admin/subscriptions_controller_spec.rb b/plugins/discourse-subscriptions/spec/requests/admin/subscriptions_controller_spec.rb
index 36b4b55ad12..d0be1ec9cb3 100644
--- a/plugins/discourse-subscriptions/spec/requests/admin/subscriptions_controller_spec.rb
+++ b/plugins/discourse-subscriptions/spec/requests/admin/subscriptions_controller_spec.rb
@@ -123,6 +123,17 @@ RSpec.describe DiscourseSubscriptions::Admin::SubscriptionsController do
         }
       end
 
+      it "does not refund when refund param is the string 'false'" do
+        ::Stripe::Subscription
+          .expects(:cancel)
+          .with("sub_12345")
+          .returns(plan: { product: "pr_34578" }, customer: "c_123")
+        ::Stripe::Subscription.expects(:retrieve).with("sub_12345").never
+        ::Stripe::Refund.expects(:create).never
+
+        delete "/s/admin/subscriptions/sub_12345.json", params: { refund: "false" }
+      end
+
       it "refunds if params[:refund] present" do
         ::Stripe::Subscription
           .expects(:cancel)
diff --git a/plugins/discourse-subscriptions/spec/requests/admin/subscriptions_controller_spec.rb.lock b/plugins/discourse-subscriptions/spec/requests/admin/subscriptions_controller_spec.rb.lock
new file mode 100644
index 00000000000..e69de29bb2d