diff --git a/app/controllers/projects_controller.rb b/app/controllers/projects_controller.rb
index c2b0753..007e09d 100644
--- a/app/controllers/projects_controller.rb
+++ b/app/controllers/projects_controller.rb
@@ -46,7 +46,8 @@ class ProjectsController < ApplicationController
   def update
     set_project
     @project_image = ProjectImage.find_by_project_id(@project.id)
-    if @project.update(project_params) && @project_image.update(url: project_params[:image_url])
+    image_url = project_params.delete(:image_url)
+    if @project.update(project_params) && @project_image.update(url: image_url)
       redirect_to(project_path(@project.id))
     else
       render "edit"
--
libgit2 0.21.2