diff --git a/components/selectors/parser.rs b/components/selectors/parser.rs
index e9b59f7f831..06f381d600c 100644
--- a/components/selectors/parser.rs
+++ b/components/selectors/parser.rs
@@ -1528,7 +1528,7 @@ fn parse_compound_selector<'i, 't, P, E, Impl>(
                 }
 
                 builder.push_simple_selector(Component::PseudoElement(p));
-                for state_selector in state_selectors.into_iter() {
+                for state_selector in state_selectors.drain() {
                     builder.push_simple_selector(state_selector);
                 }
 
diff --git a/components/style/stylist.rs b/components/style/stylist.rs
index db444a53811..012ae046770 100644
--- a/components/style/stylist.rs
+++ b/components/style/stylist.rs
@@ -942,7 +942,7 @@ impl Stylist {
             if !declarations.is_empty() {
                 let rule_node =
                     self.rule_tree.insert_ordered_rules_with_important(
-                        declarations.into_iter().map(|a| a.order_and_level()),
+                        declarations.drain().map(|a| a.order_and_level()),
                         guards);
                 if rule_node != *self.rule_tree.root() {
                     inputs.visited_rules = Some(rule_node);