diff --git a/service/lib/agama/config_reader.rb b/service/lib/agama/config_reader.rb
index da43bc024b..e1dde8ded5 100644
--- a/service/lib/agama/config_reader.rb
+++ b/service/lib/agama/config_reader.rb
@@ -148,7 +148,7 @@ def config_paths
       paths.uniq! { |f| File.basename(f) }
       # Sort files lexicographic
       paths.sort_by! { |f| File.basename(f) }
-      paths.prepend(default_path)
+      paths.prepend(default_path) if File.exist?(default_path)
 
       paths
     end