diff --git a/lib/jekyll/filters.rb b/lib/jekyll/filters.rb
index 06a4147f..1d89b830 100644
--- a/lib/jekyll/filters.rb
+++ b/lib/jekyll/filters.rb
@@ -273,7 +273,8 @@ module Jekyll
       begin
         input.to_i
       rescue
-        raise ArgumentError, "Object '#{input.inspect}' could not be converted into an integer."
+        raise ArgumentError,
+          "Object '#{input.inspect}' could not be converted into an integer."
       end
     end