diff --git a/components/style/properties.mako.rs b/components/style/properties.mako.rs
index c50d0a852fe..5783a234ec9 100644
--- a/components/style/properties.mako.rs
+++ b/components/style/properties.mako.rs
@@ -1775,6 +1775,9 @@ pub mod longhands {
 
         pub fn parse(_context: &ParserContext, input: &mut Parser) -> Result<SpecifiedValue, ()> {
             let mut filters = Vec::new();
+            if input.try(|input| input.expect_ident_matching("none")).is_ok() {
+                return Ok(SpecifiedValue::new(filters))
+            }
             loop {
                 if let Ok(function_name) = input.try(|input| input.expect_function()) {
                     filters.push(try!(input.parse_nested_block(|input| {