diff --git a/components/malloc_size_of/lib.rs b/components/malloc_size_of/lib.rs
index 0e802d38610..95d3bd6335b 100644
--- a/components/malloc_size_of/lib.rs
+++ b/components/malloc_size_of/lib.rs
@@ -39,8 +39,8 @@
 //! - If you need an additional synchronization argument, provide a function
 //!   that is like the standard trait method, but with the extra argument.
 //! - If you need multiple measurements for a type, provide a function named
-//!   `add_size_of_children` that takes a mutable reference to a struct that
-//!   contains the multiple measurement fields.
+//!   `add_size_of` that takes a mutable reference to a struct that contains
+//!   the multiple measurement fields.
 //! - When deep measurement (via `MallocSizeOf`) cannot be implemented for a
 //!   type, shallow measurement (via `MallocShallowSizeOf`) in combination with
 //!   iteration can be a useful substitute.
diff --git a/components/style/gecko/data.rs b/components/style/gecko/data.rs
index 698a00282d2..2db087186ad 100644
--- a/components/style/gecko/data.rs
+++ b/components/style/gecko/data.rs
@@ -181,8 +181,8 @@ impl PerDocumentStyleDataImpl {
     }
 
     /// Measure heap usage.
-    pub fn add_size_of_children(&self, ops: &mut MallocSizeOfOps, sizes: &mut ServoStyleSetSizes) {
-        self.stylist.add_size_of_children(ops, sizes);
+    pub fn add_size_of(&self, ops: &mut MallocSizeOfOps, sizes: &mut ServoStyleSetSizes) {
+        self.stylist.add_size_of(ops, sizes);
     }
 }
 
diff --git a/components/style/stylist.rs b/components/style/stylist.rs
index 5962117fbad..da17b547d38 100644
--- a/components/style/stylist.rs
+++ b/components/style/stylist.rs
@@ -174,7 +174,7 @@ struct UserAgentCascadeData {
 impl UserAgentCascadeData {
     #[cfg(feature = "gecko")]
     fn add_size_of(&self, ops: &mut MallocSizeOfOps, sizes: &mut ServoStyleSetSizes) {
-        self.cascade_data.add_size_of_children(ops, sizes);
+        self.cascade_data.add_size_of(ops, sizes);
         sizes.mPrecomputedPseudos += self.precomputed_pseudo_element_decls.size_of(ops);
     }
 }
@@ -329,9 +329,9 @@ impl DocumentCascadeData {
 
     /// Measures heap usage.
     #[cfg(feature = "gecko")]
-    pub fn add_size_of_children(&self, ops: &mut MallocSizeOfOps, sizes: &mut ServoStyleSetSizes) {
-        self.user.add_size_of_children(ops, sizes);
-        self.author.add_size_of_children(ops, sizes);
+    pub fn add_size_of(&self, ops: &mut MallocSizeOfOps, sizes: &mut ServoStyleSetSizes) {
+        self.user.add_size_of(ops, sizes);
+        self.author.add_size_of(ops, sizes);
     }
 }
 
@@ -1530,8 +1530,8 @@ impl Stylist {
 
     /// Measures heap usage.
     #[cfg(feature = "gecko")]
-    pub fn add_size_of_children(&self, ops: &mut MallocSizeOfOps, sizes: &mut ServoStyleSetSizes) {
-        self.cascade_data.add_size_of_children(ops, sizes);
+    pub fn add_size_of(&self, ops: &mut MallocSizeOfOps, sizes: &mut ServoStyleSetSizes) {
+        self.cascade_data.add_size_of(ops, sizes);
         sizes.mRuleTree += self.rule_tree.size_of(ops);
 
         // We may measure other fields in the future if DMD says it's worth it.
@@ -2225,7 +2225,7 @@ impl CascadeData {
 
     /// Measures heap usage.
     #[cfg(feature = "gecko")]
-    pub fn add_size_of_children(&self, ops: &mut MallocSizeOfOps, sizes: &mut ServoStyleSetSizes) {
+    pub fn add_size_of(&self, ops: &mut MallocSizeOfOps, sizes: &mut ServoStyleSetSizes) {
         sizes.mElementAndPseudosMaps += self.element_map.size_of(ops);
 
         for elem in self.pseudos_map.iter() {
diff --git a/ports/geckolib/glue.rs b/ports/geckolib/glue.rs
index 18f7afb224f..a72fd98c194 100644
--- a/ports/geckolib/glue.rs
+++ b/ports/geckolib/glue.rs
@@ -3781,7 +3781,7 @@ pub extern "C" fn Servo_StyleSet_AddSizeOfExcludingThis(
                                        malloc_enclosing_size_of.unwrap(),
                                        None);
     let sizes = unsafe { sizes.as_mut() }.unwrap();
-    data.add_size_of_children(&mut ops, sizes);
+    data.add_size_of(&mut ops, sizes);
 }
 
 #[no_mangle]