diff --git a/components/style/gecko/media_queries.rs b/components/style/gecko/media_queries.rs
index e5ffccf11c1..08425f22059 100644
--- a/components/style/gecko/media_queries.rs
+++ b/components/style/gecko/media_queries.rs
@@ -9,6 +9,7 @@ use crate::gecko::values::{convert_nscolor_to_rgba, convert_rgba_to_nscolor};
 use crate::gecko_bindings::bindings;
 use crate::gecko_bindings::structs;
 use crate::media_queries::MediaType;
+use crate::context::QuirksMode;
 use crate::properties::ComputedValues;
 use crate::string_cache::Atom;
 use crate::values::computed::Length;
@@ -143,6 +144,11 @@ impl Device {
             .store(size.px().to_bits(), Ordering::Relaxed)
     }
 
+    /// The quirks mode of the document.
+    pub fn quirks_mode(&self) -> QuirksMode {
+        self.document().mCompatMode.into()
+    }
+
     /// Sets the body text color for the "inherit color from body" quirk.
     ///
     /// <https://quirks.spec.whatwg.org/#the-tables-inherit-color-from-body-quirk>
diff --git a/components/style/invalidation/stylesheets.rs b/components/style/invalidation/stylesheets.rs
index b50e04b0f0b..8ac2b57b34e 100644
--- a/components/style/invalidation/stylesheets.rs
+++ b/components/style/invalidation/stylesheets.rs
@@ -140,7 +140,7 @@ impl StylesheetInvalidationSet {
             return; // Nothing to do here.
         }
 
-        let quirks_mode = stylesheet.quirks_mode(guard);
+        let quirks_mode = device.quirks_mode();
         for rule in stylesheet.effective_rules(device, guard) {
             self.collect_invalidations_for_rule(rule, guard, device, quirks_mode);
             if self.fully_invalid {
diff --git a/components/style/stylesheet_set.rs b/components/style/stylesheet_set.rs
index 93f4b986052..fe743025419 100644
--- a/components/style/stylesheet_set.rs
+++ b/components/style/stylesheet_set.rs
@@ -450,7 +450,7 @@ macro_rules! sheet_set_methods {
             change_kind: RuleChangeKind,
         ) {
             if let Some(device) = device {
-                let quirks_mode = sheet.quirks_mode(guard);
+                let quirks_mode = device.quirks_mode();
                 self.invalidations.rule_changed(
                     sheet,
                     rule,