diff --git a/components/style/properties/longhand/font.mako.rs b/components/style/properties/longhand/font.mako.rs
index ec611a4edec..e7edbb1c0c1 100644
--- a/components/style/properties/longhand/font.mako.rs
+++ b/components/style/properties/longhand/font.mako.rs
@@ -68,7 +68,7 @@ macro_rules! impl_gecko_keyword_conversions {
     }
 </%def>
 
-<%helpers:longhand name="font-family" animation_value_type="discrete" need_index="True"  boxed="${product == 'gecko'}"
+<%helpers:longhand name="font-family" animation_value_type="discrete" boxed="${product == 'gecko'}"
                    flags="APPLIES_TO_FIRST_LETTER APPLIES_TO_FIRST_LINE APPLIES_TO_PLACEHOLDER"
                    spec="https://drafts.csswg.org/css-fonts/#propdef-font-family">
     use properties::longhands::system_font::SystemFont;