diff --git a/activerecord/lib/active_record/type/integer.rb b/activerecord/lib/active_record/type/integer.rb
index fb6d9df58f893f64f505a9008e9adbafe825535a..0149d60b6e08f45aba64dc6a27d64c45137b4a58 100644
--- a/activerecord/lib/active_record/type/integer.rb
+++ b/activerecord/lib/active_record/type/integer.rb
@@ -13,7 +13,8 @@ def type
       end
 
       def type_cast_from_database(value)
-        value.to_i unless value.nil?
+        return if value.nil?
+        value.to_i
       end
 
       protected