diff --git a/crates/oxc_language_server/src/linter.rs b/crates/oxc_language_server/src/linter.rs
index 0cd3cd8a4..d187a41c3 100644
--- a/crates/oxc_language_server/src/linter.rs
+++ b/crates/oxc_language_server/src/linter.rs
@@ -369,8 +369,10 @@ fn get_valid_extensions() -> Vec<&'static str> {
 #[allow(clippy::cast_possible_truncation)]
 fn offset_to_position(offset: usize, source_text: &str) -> Option<Position> {
     let rope = Rope::from_str(source_text);
-    let line = rope.try_char_to_line(offset).ok()?;
+    let line = rope.try_byte_to_line(offset).ok()?;
     let first_char_of_line = rope.try_line_to_char(line).ok()?;
+    // Original offset is byte, but Rope uses char offset
+    let offset = rope.try_byte_to_char(offset).ok()?;
     let column = offset - first_char_of_line;
     Some(Position::new(line as u32, column as u32))
 }