diff --git a/components/style/gecko/regen_atoms.py b/components/style/gecko/regen_atoms.py
index 9c8545bf8db..bdc59748b0c 100755
--- a/components/style/gecko/regen_atoms.py
+++ b/components/style/gecko/regen_atoms.py
@@ -55,7 +55,7 @@ class CSSPseudoElementsAtomSource:
 
 
 class CSSAnonBoxesAtomSource:
-    PATTERN = re.compile('^(?:CSS_ANON_BOX|CSS_NON_INHERITING_ANON_BOX)\((.+),\s*"(.*)"(\,|\))')
+    PATTERN = re.compile('^(?:CSS_ANON_BOX|CSS_NON_INHERITING_ANON_BOX)\((.+),\s*"(.*)"\)')
     FILE = "include/nsCSSAnonBoxList.h"
     CLASS = "nsCSSAnonBoxes"
     TYPE = "nsICSSAnonBoxPseudo"
diff --git a/ports/geckolib/glue.rs b/ports/geckolib/glue.rs
index b18b03f25d3..d3a26d79c17 100644
--- a/ports/geckolib/glue.rs
+++ b/ports/geckolib/glue.rs
@@ -90,7 +90,7 @@ use style::invalidation::element::restyle_hints::{self, RestyleHint};
 use style::media_queries::{MediaList, parse_media_query_list};
 use style::parallel;
 use style::parser::ParserContext;
-use style::properties::{CascadeFlags, ComputedValues, Importance, SourcePropertyDeclaration};
+use style::properties::{ComputedValues, Importance, SourcePropertyDeclaration};
 use style::properties::{LonghandIdSet, PropertyDeclaration, PropertyDeclarationBlock, PropertyId, StyleBuilder};
 use style::properties::SKIP_ROOT_AND_ITEM_BASED_DISPLAY_FIXUP;
 use style::properties::animated_properties::{Animatable, AnimatableLonghand, AnimationValue};
@@ -1502,7 +1502,6 @@ pub extern "C" fn Servo_DocumentRule_GetConditionText(rule: RawServoDocumentRule
 #[no_mangle]
 pub extern "C" fn Servo_ComputedValues_GetForAnonymousBox(parent_style_or_null: ServoComputedValuesBorrowedOrNull,
                                                           pseudo_tag: *mut nsIAtom,
-                                                          skip_display_fixup: bool,
                                                           raw_data: RawServoStyleSetBorrowed)
      -> ServoComputedValuesStrong {
     let global_style_data = &*GLOBAL_STYLE_DATA;
@@ -1515,10 +1514,7 @@ pub extern "C" fn Servo_ComputedValues_GetForAnonymousBox(parent_style_or_null:
 
 
     let maybe_parent = ComputedValues::arc_from_borrowed(&parent_style_or_null);
-    let mut cascade_flags = CascadeFlags::empty();
-    if skip_display_fixup {
-        cascade_flags.insert(SKIP_ROOT_AND_ITEM_BASED_DISPLAY_FIXUP);
-    }
+    let cascade_flags = SKIP_ROOT_AND_ITEM_BASED_DISPLAY_FIXUP;
     let metrics = get_metrics_provider_for_product();
     data.stylist.precomputed_values_for_pseudo(&guards, &pseudo, maybe_parent,
                                                cascade_flags, &metrics)