diff --git a/crowbar_framework/app/models/api/pacemaker.rb b/crowbar_framework/app/models/api/pacemaker.rb
index 7fb7a2d0..392b0c81 100644
--- a/crowbar_framework/app/models/api/pacemaker.rb
+++ b/crowbar_framework/app/models/api/pacemaker.rb
@@ -51,7 +51,7 @@ def health_report
         ).map! do |node|
           node[:pacemaker][:founder]
         end.uniq
-        founders = cluster_founders_names.map { |name| NodeObject.find_by_name(name) }
+        founders = cluster_founders_names.map { |name| NodeObject.find_by_name(name) }.compact
         return ret if founders.empty?
 
         service_object = CrowbarService.new(Rails.logger)