1 files changed, 2 insertions, 2 deletions
diff --git a/activesupport/lib/active_support/file_update_checker.rb b/activesupport/lib/active_support/file_update_checker.rb
index c0b5ca4deb..5f5b264eb9 100644
--- a/activesupport/lib/active_support/file_update_checker.rb
+++ b/activesupport/lib/active_support/file_update_checker.rb
@@ -19,7 +19,7 @@ module ActiveSupport
     def initialize(paths, calculate=false, &block)
       @paths = paths
       @block = block
-      @last_update_at = updated_at if calculate
+      @last_update_at = calculate ? updated_at : nil
     end
 
     def updated_at
@@ -34,4 +34,4 @@ module ActiveSupport
       end
     end
   end
-end
-\ No newline at end of file
+end