diff --git a/layout/style/test/property_database.js b/layout/style/test/property_database.js
index d12fd2b47958..18c041ad5469 100644
--- a/layout/style/test/property_database.js
+++ b/layout/style/test/property_database.js
@@ -1724,7 +1724,6 @@ var gCSSProperties = {
 		inherited: true,
 		type: CSS_TYPE_TRUE_SHORTHAND,
 		subproperties: [ "font-style", "font-variant", "font-weight", "font-size", "line-height", "font-family", "font-stretch", "font-size-adjust", "-moz-font-feature-settings", "-moz-font-language-override" ],
-		/* XXX could be sans-serif */
 		initial_values: [ (gInitialFontFamilyIsSansSerif ? "medium sans-serif" : "medium serif") ],
 		other_values: [ "large serif", "9px fantasy", "bold italic small-caps 24px/1.4 Times New Roman, serif", "caption", "icon", "menu", "message-box", "small-caption", "status-bar" ],
 		invalid_values: []