diff --git a/crates/typst-syntax/src/parser.rs b/crates/typst-syntax/src/parser.rs
index a65e5ff6b..f9fb8b616 100644
--- a/crates/typst-syntax/src/parser.rs
+++ b/crates/typst-syntax/src/parser.rs
@@ -442,10 +442,10 @@ fn math_unparen(p: &mut Parser, m: Marker) {
         if first.text() == "(" && last.text() == ")" {
             first.convert_to_kind(SyntaxKind::LeftParen);
             last.convert_to_kind(SyntaxKind::RightParen);
+            // Only convert if we did have regular parens.
+            node.convert_to_kind(SyntaxKind::Math);
         }
     }
-
-    node.convert_to_kind(SyntaxKind::Math);
 }
 
 /// The unicode math class of a string. Only returns `Some` if `text` has
diff --git a/tests/ref/math-lr-unparen.png b/tests/ref/math-lr-unparen.png
new file mode 100644
index 000000000..d418b14ea
Binary files /dev/null and b/tests/ref/math-lr-unparen.png differ
diff --git a/tests/suite/math/delimited.typ b/tests/suite/math/delimited.typ
index 226740501..ca82427dd 100644
--- a/tests/suite/math/delimited.typ
+++ b/tests/suite/math/delimited.typ
@@ -125,3 +125,11 @@ $ lr(size: #3em, |)_a^b lr(size: #3em, zws|)_a^b
 --- issue-4188-lr-corner-brackets ---
 // Test positioning of U+231C to U+231F
 $⌜a⌟⌞b⌝$ = $⌜$$a$$⌟$$⌞$$b$$⌝$
+
+--- math-lr-unparen ---
+// Test that unparen with brackets stays as an LrElem.
+#let item = $limits(sum)_i$
+$
+  1 / ([item]) quad
+  1 /  [item]
+$