diff --git a/components/style/font_face.rs b/components/style/font_face.rs
index f320bb0e2018..c5e9e330f82f 100644
--- a/components/style/font_face.rs
+++ b/components/style/font_face.rs
@@ -15,7 +15,7 @@ use cssparser::{AtRuleParser, DeclarationListParser, DeclarationParser, Parser};
 use parser::{ParserContext, log_css_error, Parse};
 use std::fmt;
 use std::iter;
-use style_traits::{ToCss, CommaSeparated};
+use style_traits::{ToCss, OneOrMoreCommaSeparated};
 use values::specified::url::SpecifiedUrl;
 
 /// A source for a font-face rule.
@@ -46,7 +46,7 @@ impl ToCss for Source {
     }
 }
 
-impl CommaSeparated for Source {}
+impl OneOrMoreCommaSeparated for Source {}
 
 /// A `UrlSource` represents a font-face source that has been specified with a
 /// `url()` function.
@@ -323,7 +323,7 @@ pub mod unicode_range {
     use cssparser::{Parser, Token};
     use parser::{ParserContext, Parse};
     use std::fmt;
-    use style_traits::{ToCss, CommaSeparated};
+    use style_traits::{ToCss, OneOrMoreCommaSeparated};
 
     /// Maximum value of the end of a range
     pub const MAX: u32 = ::std::char::MAX as u32;
@@ -338,7 +338,7 @@ pub mod unicode_range {
         pub end: u32,
     }
 
-    impl CommaSeparated for Range {}
+    impl OneOrMoreCommaSeparated for Range {}
 
     impl Parse for Range {
         fn parse(_context: &ParserContext, input: &mut Parser) -> Result<Self, ()> {
diff --git a/components/style/parser.rs b/components/style/parser.rs
index e325547b368d..a9d153529843 100644
--- a/components/style/parser.rs
+++ b/components/style/parser.rs
@@ -11,7 +11,7 @@ use error_reporting::ParseErrorReporter;
 #[cfg(feature = "gecko")]
 use gecko_bindings::sugar::refptr::{GeckoArcPrincipal, GeckoArcURI};
 use servo_url::ServoUrl;
-use style_traits::CommaSeparated;
+use style_traits::OneOrMoreCommaSeparated;
 use stylesheets::{MemoryHoleReporter, Origin};
 
 /// Extra data that the style backend may need to parse stylesheets.
@@ -104,7 +104,7 @@ pub trait Parse : Sized {
     fn parse(context: &ParserContext, input: &mut Parser) -> Result<Self, ()>;
 }
 
-impl<T> Parse for Vec<T> where T: Parse + CommaSeparated {
+impl<T> Parse for Vec<T> where T: Parse + OneOrMoreCommaSeparated {
     fn parse(context: &ParserContext, input: &mut Parser) -> Result<Self, ()> {
         input.parse_comma_separated(|input| T::parse(context, input))
     }
diff --git a/components/style_traits/lib.rs b/components/style_traits/lib.rs
index bc66db33d9d8..4eadd6404026 100644
--- a/components/style_traits/lib.rs
+++ b/components/style_traits/lib.rs
@@ -59,4 +59,4 @@ pub mod cursor;
 pub mod values;
 pub mod viewport;
 
-pub use values::{ToCss, CommaSeparated};
+pub use values::{ToCss, OneOrMoreCommaSeparated};
diff --git a/components/style_traits/values.rs b/components/style_traits/values.rs
index 5c23d74fbfa7..d59520c626d3 100644
--- a/components/style_traits/values.rs
+++ b/components/style_traits/values.rs
@@ -25,9 +25,9 @@ pub trait ToCss {
 }
 
 /// Marker trait to automatically implement ToCss for Vec<T>.
-pub trait CommaSeparated {}
+pub trait OneOrMoreCommaSeparated {}
 
-impl<T> ToCss for Vec<T> where T: ToCss + CommaSeparated {
+impl<T> ToCss for Vec<T> where T: ToCss + OneOrMoreCommaSeparated {
     fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
         let mut iter = self.iter();
         iter.next().unwrap().to_css(dest)?;