diff --git a/app/helpers/remote_execution_helper.rb b/app/helpers/remote_execution_helper.rb
index 234f417c0..909e8ebc6 100644
--- a/app/helpers/remote_execution_helper.rb
+++ b/app/helpers/remote_execution_helper.rb
@@ -203,8 +203,7 @@ def time_in_words_span(time)
   end
 
   def documentation_button_rex(section = '')
-    url = "https://theforeman.org/plugins/foreman_remote_execution/#{rex_doc_version}/index.html#"
-    documentation_button section, :root_url => url
+    documentation_button section, type: 'plugin_manual', name: 'foreman_remote_execution', version: rex_doc_version, section: "##{section}"
   end
 
   def description_checkbox_f(f, job_template, disabled)
diff --git a/lib/foreman_remote_execution/engine.rb b/lib/foreman_remote_execution/engine.rb
index 3ba9e4ab0..96e523b70 100644
--- a/lib/foreman_remote_execution/engine.rb
+++ b/lib/foreman_remote_execution/engine.rb
@@ -47,7 +47,7 @@ class Engine < ::Rails::Engine
 
     initializer 'foreman_remote_execution.register_plugin', before: :finisher_hook do |_app|
       Foreman::Plugin.register :foreman_remote_execution do
-        requires_foreman '>= 3.7'
+        requires_foreman '>= 3.8'
         register_global_js_file 'global'
         register_gettext