diff --git a/crates/typst/src/math/accent.rs b/crates/typst/src/math/accent.rs
index 9ebbfc349..06fd6babd 100644
--- a/crates/typst/src/math/accent.rs
+++ b/crates/typst/src/math/accent.rs
@@ -45,15 +45,17 @@ pub struct AccentElem {
     /// | Macron        | `macron`        | `¯`       |
     /// | Breve         | `breve`         | `˘`       |
     /// | Dot           | `dot`           | `.`       |
-    /// | Double dot    | `dot.double`    | `¨`       |
+    /// | Double dot, Diaeresis | `dot.double`, `diaer` | `¨` |
     /// | Triple dot    | `dot.triple`    | <code>&tdot;</code> |
     /// | Quadruple dot | `dot.quad`      | <code>&DotDot;</code> |
-    /// | Diaeresis     | `diaer`         | `¨`       |
     /// | Circle        | `circle`        | `∘`       |
     /// | Double acute  | `acute.double`  | `˝`       |
     /// | Caron         | `caron`         | `ˇ`       |
     /// | Right arrow   | `arrow`, `->`   | `→`       |
     /// | Left arrow    | `arrow.l`, `<-` | `←`       |
+    /// | Left/Right arrow | `arrow.l.r`  | `↔`       |
+    /// | Right harpoon | `harpoon`       | `⇀`       |
+    /// | Left harpoon  | `harpoon.lt`    | `↼`       |
     #[required]
     pub accent: Accent,
 
diff --git a/crates/typst/src/symbols/symbol.rs b/crates/typst/src/symbols/symbol.rs
index 8a7707cdb..4ba603825 100644
--- a/crates/typst/src/symbols/symbol.rs
+++ b/crates/typst/src/symbols/symbol.rs
@@ -134,7 +134,8 @@ impl Symbol {
         set.into_iter()
     }
 
-    /// Normalize an accent to a combining one.
+    /// Normalize an accent to a combining one. Keep it synced with the
+    /// documenting table in accent.rs AccentElem.
     pub fn combining_accent(c: char) -> Option<char> {
         Some(match c {
             '\u{0300}' | '`' => '\u{0300}',
@@ -153,9 +154,9 @@ impl Symbol {
             '\u{030c}' | 'ˇ' => '\u{030c}',
             '\u{20d6}' | '←' => '\u{20d6}',
             '\u{20d7}' | '→' | '⟶' => '\u{20d7}',
+            '\u{20e1}' | '↔' | '⟷' => '\u{20e1}',
             '\u{20d0}' | '↼' => '\u{20d0}',
             '\u{20d1}' | '⇀' => '\u{20d1}',
-            '\u{20e1}' | '↔' | '⟷' => '\u{20e1}',
             _ => return None,
         })
     }