diff --git a/lib/jekyll/filters.rb b/lib/jekyll/filters.rb
index 6d70b200..0e2dce52 100644
--- a/lib/jekyll/filters.rb
+++ b/lib/jekyll/filters.rb
@@ -203,7 +203,7 @@ module Jekyll
     # Filter an array of objects
     #
     # input - the object array
-    # key - key within each object to filter by
+    # property - property within each object to filter by
     # value - desired value
     #
     # Returns the filtered array of objects