diff --git a/components/style/gecko/pseudo_element_definition.mako.rs b/components/style/gecko/pseudo_element_definition.mako.rs
index d8d80d60165..f4a6671bd39 100644
--- a/components/style/gecko/pseudo_element_definition.mako.rs
+++ b/components/style/gecko/pseudo_element_definition.mako.rs
@@ -193,18 +193,18 @@ impl PseudoElement {
             % for pseudo in SIMPLE_PSEUDOS:
             "${pseudo.value[1:]}" => {
                 return Some(${pseudo_element_variant(pseudo)})
-            }
+            },
             % endfor
             // Alias some legacy prefixed pseudos to their standardized name at parse time:
             "-moz-selection" => {
                 return Some(PseudoElement::Selection);
-            }
+            },
             "-moz-placeholder" => {
                 return Some(PseudoElement::Placeholder);
-            }
+            },
             "-moz-list-bullet" | "-moz-list-number" => {
                 return Some(PseudoElement::Marker);
-            }
+            },
             _ => {
                 if starts_with_ignore_ascii_case(name, "-moz-tree-") {
                     return PseudoElement::tree_pseudo_element(name, Box::new([]))
diff --git a/components/style/gecko/selector_parser.rs b/components/style/gecko/selector_parser.rs
index 18878213244..9f5b49c5c13 100644
--- a/components/style/gecko/selector_parser.rs
+++ b/components/style/gecko/selector_parser.rs
@@ -396,7 +396,7 @@ impl<'a, 'i> ::selectors::Parser<'i> for SelectorParser<'a> {
                         parser,
                     )?.into()
                 )
-            }
+            },
             _ => return Err(parser.new_custom_error(
                 SelectorParseErrorKind::UnsupportedPseudoClassOrElement(name.clone())
             ))
diff --git a/components/style/values/specified/align.rs b/components/style/values/specified/align.rs
index 7c2ecda19a4..0dc1e422515 100644
--- a/components/style/values/specified/align.rs
+++ b/components/style/values/specified/align.rs
@@ -691,11 +691,11 @@ fn parse_baseline<'i, 't>(input: &mut Parser<'i, 't>) -> Result<AlignFlags, Pars
         "first" => {
             input.expect_ident_matching("baseline")?;
             Ok(AlignFlags::BASELINE)
-        }
+        },
         "last" => {
             input.expect_ident_matching("baseline")?;
             Ok(AlignFlags::LAST_BASELINE)
-        }
+        },
     }
 }
 
@@ -794,7 +794,7 @@ fn parse_legacy<'i, 't>(input: &mut Parser<'i, 't>) -> Result<AlignFlags, ParseE
                 .unwrap_or(AlignFlags::empty());
 
             return Ok(AlignFlags::LEGACY | flags)
-        }
+        },
         "left" => AlignFlags::LEFT,
         "right" => AlignFlags::RIGHT,
         "center" => AlignFlags::CENTER,