git.diff

diff --git a/app/lib/actions/katello/content_view/remove.rb b/app/lib/actions/katello/content_view/remove.rb
index a4fdf1f..775cb74 100644
--- a/app/lib/actions/katello/content_view/remove.rb
+++ b/app/lib/actions/katello/content_view/remove.rb
@@ -109,7 +109,7 @@ module Actions
         end
 
         def combined_cv_envs(cv_envs, versions)
-          (cv_envs + versions.flat_map(&:content_view_environments)).uniq
+          (cv_envs - versions.flat_map(&:content_view_environments)).uniq
         end
 
         def system_cve(options)