diff --git a/components/style/values/computed/mod.rs b/components/style/values/computed/mod.rs
index a38bf049ad0..1d40275db80 100644
--- a/components/style/values/computed/mod.rs
+++ b/components/style/values/computed/mod.rs
@@ -81,7 +81,7 @@ pub use self::list::ListStyleType;
 pub use self::list::Quotes;
 pub use self::motion::{OffsetPath, OffsetRotate};
 pub use self::outline::OutlineStyle;
-pub use self::page::{PageName, PageOrientation, PageSize, PaperSize};
+pub use self::page::{PageName, PageSize, PageSizeOrientation, PaperSize};
 pub use self::percentage::{NonNegativePercentage, Percentage};
 pub use self::position::AspectRatio;
 pub use self::position::{
diff --git a/components/style/values/computed/page.rs b/components/style/values/computed/page.rs
index 5daf6bbcde8..d54fca329b4 100644
--- a/components/style/values/computed/page.rs
+++ b/components/style/values/computed/page.rs
@@ -11,7 +11,7 @@ use crate::values::generics::size::Size2D;
 
 use crate::values::specified::page as specified;
 pub use generics::page::GenericPageSize;
-pub use generics::page::PageOrientation;
+pub use generics::page::PageSizeOrientation;
 pub use generics::page::PaperSize;
 pub use specified::PageName;
 
@@ -26,7 +26,7 @@ pub enum PageSize {
     /// Specified size, paper size, or paper size and orientation.
     Size(Size2D<NonNegativeLength>),
     /// `landscape` or `portrait` value, no specified size.
-    Orientation(PageOrientation),
+    Orientation(PageSizeOrientation),
     /// `auto` value
     Auto,
 }
@@ -37,11 +37,11 @@ impl ToComputedValue for specified::PageSize {
     fn to_computed_value(&self, ctx: &Context) -> Self::ComputedValue {
         match &*self {
             Self::Size(s) => PageSize::Size(s.to_computed_value(ctx)),
-            Self::PaperSize(p, PageOrientation::Landscape) => PageSize::Size(Size2D {
+            Self::PaperSize(p, PageSizeOrientation::Landscape) => PageSize::Size(Size2D {
                 width: p.long_edge().to_computed_value(ctx),
                 height: p.short_edge().to_computed_value(ctx),
             }),
-            Self::PaperSize(p, PageOrientation::Portrait) => PageSize::Size(Size2D {
+            Self::PaperSize(p, PageSizeOrientation::Portrait) => PageSize::Size(Size2D {
                 width: p.short_edge().to_computed_value(ctx),
                 height: p.long_edge().to_computed_value(ctx),
             }),
diff --git a/components/style/values/generics/page.rs b/components/style/values/generics/page.rs
index efb67e0812d..ed81c9e5349 100644
--- a/components/style/values/generics/page.rs
+++ b/components/style/values/generics/page.rs
@@ -87,7 +87,7 @@ impl PaperSize {
     ToShmem,
 )]
 #[repr(u8)]
-pub enum PageOrientation {
+pub enum PageSizeOrientation {
     /// Portrait orientation
     Portrait,
     /// Landscape orientation
@@ -95,8 +95,8 @@ pub enum PageOrientation {
 }
 
 #[inline]
-fn is_portrait(orientation: &PageOrientation) -> bool {
-    *orientation == PageOrientation::Portrait
+fn is_portrait(orientation: &PageSizeOrientation) -> bool {
+    *orientation == PageSizeOrientation::Portrait
 }
 
 /// Page size property
@@ -110,9 +110,9 @@ pub enum GenericPageSize<S> {
     /// Page dimensions.
     Size(S),
     /// An orientation with no size.
-    Orientation(PageOrientation),
+    Orientation(PageSizeOrientation),
     /// Paper size by name
-    PaperSize(PaperSize, #[css(skip_if = "is_portrait")] PageOrientation),
+    PaperSize(PaperSize, #[css(skip_if = "is_portrait")] PageSizeOrientation),
 }
 
 pub use self::GenericPageSize as PageSize;
diff --git a/components/style/values/specified/mod.rs b/components/style/values/specified/mod.rs
index 7fa2c57549a..9dbf0ec3852 100644
--- a/components/style/values/specified/mod.rs
+++ b/components/style/values/specified/mod.rs
@@ -72,7 +72,7 @@ pub use self::list::ListStyleType;
 pub use self::list::Quotes;
 pub use self::motion::{OffsetPath, OffsetRotate};
 pub use self::outline::OutlineStyle;
-pub use self::page::{PageName, PageOrientation, PageSize, PaperSize};
+pub use self::page::{PageName, PageSize, PageSizeOrientation, PaperSize};
 pub use self::percentage::{NonNegativePercentage, Percentage};
 pub use self::position::AspectRatio;
 pub use self::position::{
diff --git a/components/style/values/specified/page.rs b/components/style/values/specified/page.rs
index e660b435327..f8727a9c1d3 100644
--- a/components/style/values/specified/page.rs
+++ b/components/style/values/specified/page.rs
@@ -11,7 +11,7 @@ use crate::values::{generics, CustomIdent};
 use cssparser::Parser;
 use style_traits::ParseError;
 
-pub use generics::page::PageOrientation;
+pub use generics::page::PageSizeOrientation;
 pub use generics::page::PaperSize;
 /// Specified value of the @page size descriptor
 pub type PageSize = generics::page::PageSize<Size2D<NonNegativeLength>>;
@@ -24,12 +24,12 @@ impl Parse for PageSize {
         // Try to parse as <page-size> [ <orientation> ]
         if let Ok(paper_size) = input.try_parse(PaperSize::parse) {
             let orientation = input
-                .try_parse(PageOrientation::parse)
-                .unwrap_or(PageOrientation::Portrait);
+                .try_parse(PageSizeOrientation::parse)
+                .unwrap_or(PageSizeOrientation::Portrait);
             return Ok(PageSize::PaperSize(paper_size, orientation));
         }
         // Try to parse as <orientation> [ <page-size> ]
-        if let Ok(orientation) = input.try_parse(PageOrientation::parse) {
+        if let Ok(orientation) = input.try_parse(PageSizeOrientation::parse) {
             if let Ok(paper_size) = input.try_parse(PaperSize::parse) {
                 return Ok(PageSize::PaperSize(paper_size, orientation));
             }