diff --git a/layout/style/ServoBindingList.h b/layout/style/ServoBindingList.h
index e3d082724595..1c3f84b3e86c 100644
--- a/layout/style/ServoBindingList.h
+++ b/layout/style/ServoBindingList.h
@@ -30,7 +30,8 @@ SERVO_BINDING_FUNC(Servo_StyleSheet_FromUTF8Bytes, RawServoStyleSheetStrong,
                    const nsACString* data,
                    mozilla::css::SheetParsingMode parsing_mode,
                    const RawServoMediaList* media_list,
-                   RawGeckoURLExtraData* extra_data)
+                   RawGeckoURLExtraData* extra_data,
+                   uint32_t line_number_offset)
 SERVO_BINDING_FUNC(Servo_ImportRule_GetSheet,
                    RawServoStyleSheetStrong,
                    const RawServoImportRuleBorrowed import_rule)
@@ -40,7 +41,8 @@ SERVO_BINDING_FUNC(Servo_StyleSheet_ClearAndUpdate,
                    mozilla::css::Loader* loader,
                    mozilla::ServoStyleSheet* gecko_stylesheet,
                    const nsACString* data,
-                   RawGeckoURLExtraData* extra_data)
+                   RawGeckoURLExtraData* extra_data,
+                   uint32_t line_number_offset)
 SERVO_BINDING_FUNC(Servo_StyleSheet_HasRules, bool,
                    RawServoStyleSheetBorrowed sheet)
 SERVO_BINDING_FUNC(Servo_StyleSheet_GetRules, ServoCssRulesStrong,
diff --git a/layout/style/ServoStyleSheet.cpp b/layout/style/ServoStyleSheet.cpp
index 624f02981fbb..8e76ddbd4b59 100644
--- a/layout/style/ServoStyleSheet.cpp
+++ b/layout/style/ServoStyleSheet.cpp
@@ -110,13 +110,14 @@ ServoStyleSheet::ParseSheet(css::Loader* aLoader,
 
     Inner()->mSheet =
       Servo_StyleSheet_FromUTF8Bytes(
-          aLoader, this, &input, mParsingMode, media, extraData).Consume();
+          aLoader, this, &input, mParsingMode, media, extraData, aLineNumber
+      ).Consume();
   } else {
     // TODO(emilio): Once we have proper inner cloning (which we don't right
     // now) we should update the mediaList here too, though it's slightly
     // tricky.
     Servo_StyleSheet_ClearAndUpdate(Inner()->mSheet, aLoader,
-                                    this, &input, extraData);
+                                    this, &input, extraData, aLineNumber);
   }
 
   Inner()->mURLData = extraData.forget();
diff --git a/layout/style/test/gtest/StyloParsingBench.cpp b/layout/style/test/gtest/StyloParsingBench.cpp
index 3e93ebb6207b..985b7dbffeff 100644
--- a/layout/style/test/gtest/StyloParsingBench.cpp
+++ b/layout/style/test/gtest/StyloParsingBench.cpp
@@ -28,7 +28,7 @@ static void ServoParsingBench() {
     NullPrincipalURI::Create(), nullptr, NullPrincipal::Create());
   for (int i = 0; i < PARSING_REPETITIONS; i++) {
     RefPtr<RawServoStyleSheet> stylesheet = Servo_StyleSheet_FromUTF8Bytes(
-      nullptr, nullptr, &css, eAuthorSheetFeatures, nullptr, data
+      nullptr, nullptr, &css, eAuthorSheetFeatures, nullptr, data, 0
     ).Consume();
   }
 }