diff --git a/config/rails.yml b/config/rails.yml
index e9fe152..71b01e6 100644
--- a/config/rails.yml
+++ b/config/rails.yml
@@ -255,6 +255,9 @@ Performance/BindCall:
 Performance/FlatMap:
   Enabled: true
 
+Performance/MapCompact:
+  Enabled: true
+
 Performance/RedundantMerge:
   Enabled: true