diff --git a/crates/oxc_ast/src/trivia.rs b/crates/oxc_ast/src/trivia.rs
index 26620c42a..92fd695ba 100644
--- a/crates/oxc_ast/src/trivia.rs
+++ b/crates/oxc_ast/src/trivia.rs
@@ -1,11 +1,14 @@
 //! Trivias such as comments
 
+use oxc_span::Span;
 use std::collections::BTreeMap;
 
-use oxc_span::Span;
-
 /// A vec of trivias from the lexer, tupled by (span.start, span.end).
-pub type Trivias = Vec<(u32, u32, CommentKind)>;
+#[derive(Debug, Default)]
+pub struct Trivias {
+    pub comments: Vec<(u32, u32, CommentKind)>,
+    pub irregular_whitespaces: Vec<Span>,
+}
 
 /// Trivias such as comments
 ///
@@ -15,11 +18,15 @@ pub type Trivias = Vec<(u32, u32, CommentKind)>;
 pub struct TriviasMap {
     /// Keyed by span.start
     comments: BTreeMap<u32, Comment>,
+    irregular_whitespaces: Vec<Span>,
 }
 
 impl From<Trivias> for TriviasMap {
     fn from(trivias: Trivias) -> Self {
-        Self { comments: trivias.iter().map(|t| (t.0, Comment::new(t.1, t.2))).collect() }
+        Self {
+            comments: trivias.comments.iter().map(|t| (t.0, Comment::new(t.1, t.2))).collect(),
+            irregular_whitespaces: trivias.irregular_whitespaces,
+        }
     }
 }
 
@@ -91,4 +98,8 @@ impl TriviasMap {
     pub fn comments_spans(&self) -> impl Iterator<Item = (Comment, Span)> + '_ {
         self.comments().iter().map(|(start, comment)| (*comment, Span::new(*start, comment.end)))
     }
+
+    pub fn irregular_whitespaces(&self) -> &Vec<Span> {
+        &self.irregular_whitespaces
+    }
 }
diff --git a/crates/oxc_parser/src/lexer/mod.rs b/crates/oxc_parser/src/lexer/mod.rs
index 46de999bd..ac74bfb38 100644
--- a/crates/oxc_parser/src/lexer/mod.rs
+++ b/crates/oxc_parser/src/lexer/mod.rs
@@ -356,6 +356,8 @@ impl<'a> Lexer<'a> {
                 Kind::Ident
             }
             c if is_irregular_whitespace(c) => {
+                self.trivia_builder
+                    .add_irregular_whitespace(self.current.token.start, self.offset());
                 self.consume_char();
                 Kind::WhiteSpace
             }
@@ -389,6 +391,11 @@ impl<'a> Lexer<'a> {
         Kind::Comment
     }
 
+    /// Section 12.1 Irregular White Space
+    fn skip_irregular_whitespace(&mut self) -> Kind {
+        Kind::WhiteSpace
+    }
+
     /// Section 12.4 Multi Line Comment
     fn skip_multi_line_comment(&mut self) -> Kind {
         while let Some(c) = self.current.chars.next() {
@@ -1319,6 +1326,7 @@ const ERR: ByteHandler = |lexer| {
 
 // <TAB> <VT> <FF>
 const SPS: ByteHandler = |lexer| {
+    lexer.skip_irregular_whitespace();
     lexer.consume_char();
     Kind::WhiteSpace
 };
diff --git a/crates/oxc_parser/src/lexer/trivia_builder.rs b/crates/oxc_parser/src/lexer/trivia_builder.rs
index 1cc84602b..d13a607c2 100644
--- a/crates/oxc_parser/src/lexer/trivia_builder.rs
+++ b/crates/oxc_parser/src/lexer/trivia_builder.rs
@@ -1,4 +1,5 @@
 use oxc_ast::{CommentKind, Trivias};
+use oxc_span::Span;
 
 #[derive(Debug, Default)]
 pub struct TriviaBuilder {
@@ -12,11 +13,15 @@ impl TriviaBuilder {
 
     /// skip leading `//`
     pub fn add_single_line_comment(&mut self, start: u32, end: u32) {
-        self.trivias.push((start + 2, end, CommentKind::SingleLine));
+        self.trivias.comments.push((start + 2, end, CommentKind::SingleLine));
     }
 
     /// skip leading `/*` and trailing `*/`
     pub fn add_multi_line_comment(&mut self, start: u32, end: u32) {
-        self.trivias.push((start + 2, end - 2, CommentKind::MultiLine));
+        self.trivias.comments.push((start + 2, end - 2, CommentKind::MultiLine));
+    }
+
+    pub fn add_irregular_whitespace(&mut self, start: u32, end: u32) {
+        self.trivias.irregular_whitespaces.push(Span::new(start, end));
     }
 }
diff --git a/crates/oxc_prettier/src/lib.rs b/crates/oxc_prettier/src/lib.rs
index 2bdfc4c66..1198c6f50 100644
--- a/crates/oxc_prettier/src/lib.rs
+++ b/crates/oxc_prettier/src/lib.rs
@@ -80,7 +80,7 @@ impl<'a> Prettier<'a> {
             allocator,
             source_text,
             options,
-            trivias: trivias.into_iter().peekable(),
+            trivias: trivias.comments.into_iter().peekable(),
             nodes: vec![],
             group_id_builder: GroupIdBuilder::default(),
             args: PrettierArgs::default(),