diff --git a/components/style/properties/longhands/background.mako.rs b/components/style/properties/longhands/background.mako.rs
index 4f0fb782779..e0ef021f32d 100644
--- a/components/style/properties/longhands/background.mako.rs
+++ b/components/style/properties/longhands/background.mako.rs
@@ -58,8 +58,8 @@ ${helpers.predefined_type(
 
 ${helpers.single_keyword(
     "background-attachment",
-    "scroll fixed" + (" local" if engine == "gecko" else ""),
-    engines="gecko servo-2013",
+    "scroll" + (" fixed" if engine in ["gecko", "servo-2013"] else "") + (" local" if engine == "gecko" else ""),
+    engines="gecko servo-2013 servo-2020",
     vector=True,
     gecko_enum_prefix="StyleImageLayerAttachment",
     spec="https://drafts.csswg.org/css-backgrounds/#the-background-attachment",
diff --git a/components/style/properties/shorthands/background.mako.rs b/components/style/properties/shorthands/background.mako.rs
index e7120a81635..ba9391cb8e8 100644
--- a/components/style/properties/shorthands/background.mako.rs
+++ b/components/style/properties/shorthands/background.mako.rs
@@ -6,7 +6,7 @@
 
 // TODO: other background-* properties
 <%helpers:shorthand name="background"
-                    engines="gecko servo-2013"
+                    engines="gecko servo-2013 servo-2020"
                     sub_properties="background-color background-position-x background-position-y background-repeat
                                     background-attachment background-image background-size background-origin
                                     background-clip"
@@ -193,29 +193,6 @@
     }
 </%helpers:shorthand>
 
-<%helpers:shorthand name="background"
-                    engines="servo-2020"
-                    sub_properties="background-color"
-                    spec="https://drafts.csswg.org/css-backgrounds/#the-background">
-    use crate::values::specified::Color;
-    use crate::parser::Parse;
-
-    pub fn parse_value<'i, 't>(
-        context: &ParserContext,
-        input: &mut Parser<'i, 't>,
-    ) -> Result<Longhands, ParseError<'i>> {
-        Ok(expanded! {
-            background_color: Color::parse(context, input)?
-        })
-    }
-
-    impl<'a> ToCss for LonghandsToSerialize<'a>  {
-        fn to_css<W>(&self, dest: &mut CssWriter<W>) -> fmt::Result where W: fmt::Write {
-            self.background_color.to_css(dest)
-        }
-    }
-</%helpers:shorthand>
-
 <%helpers:shorthand name="background-position"
                     engines="gecko servo-2013 servo-2020"
                     flags="SHORTHAND_IN_GETCS"