diff --git a/app/controllers/settings/theme_controller.rb b/app/controllers/settings/theme_controller.rb
index f37131f1..58829a67 100644
--- a/app/controllers/settings/theme_controller.rb
+++ b/app/controllers/settings/theme_controller.rb
@@ -8,23 +8,8 @@ class Settings::ThemeController < ApplicationController
   def edit; end
 
   def update
-    update_attributes = params.require(:theme).permit(%i[
-                                                        primary_color primary_text
-                                                        danger_color danger_text
-                                                        success_color success_text
-                                                        warning_color warning_text
-                                                        info_color info_text
-                                                        dark_color dark_text
-                                                        light_color light_text
-                                                        raised_background raised_accent
-                                                        raised_text raised_accent_text
-                                                        background_color body_text
-                                                        muted_text input_color
-                                                        input_text input_placeholder
-                                                      ])
-
     if current_user.theme.nil?
-      current_user.theme = Theme.new update_attributes
+      current_user.theme = Theme.new theme_attributes
       current_user.theme.user_id = current_user.id
 
       if current_user.theme.save
@@ -32,7 +17,7 @@ class Settings::ThemeController < ApplicationController
       else
         flash[:error] = t(".error", errors: current_user.theme.errors.messages.flatten.join(" "))
       end
-    elsif current_user.theme.update(update_attributes)
+    elsif current_user.theme.update(theme_attributes)
       flash[:success] = t(".success")
     else
       flash[:error] = t(".error", errors: current_user.theme.errors.messages.flatten.join(" "))
@@ -44,4 +29,23 @@ class Settings::ThemeController < ApplicationController
     current_user.theme.destroy!
     redirect_to edit_settings_theme_path
   end
+
+  private
+
+  def theme_attributes
+    params.require(:theme).permit(%i[
+                                    primary_color primary_text
+                                    danger_color danger_text
+                                    success_color success_text
+                                    warning_color warning_text
+                                    info_color info_text
+                                    dark_color dark_text
+                                    light_color light_text
+                                    raised_background raised_accent
+                                    raised_text raised_accent_text
+                                    background_color body_text
+                                    muted_text input_color
+                                    input_text input_placeholder
+                                  ])
+  end
 end