diff --git a/crates/typst/src/math/lr.rs b/crates/typst/src/math/lr.rs
index f92afbd57..671aa7df9 100644
--- a/crates/typst/src/math/lr.rs
+++ b/crates/typst/src/math/lr.rs
@@ -122,10 +122,12 @@ impl LayoutMath for Packed<MidElem> {
                 MathFragment::Glyph(glyph) => {
                     let mut new = glyph.clone().into_variant();
                     new.mid_stretched = Some(false);
+                    new.class = MathClass::Fence;
                     *fragment = MathFragment::Variant(new);
                 }
                 MathFragment::Variant(variant) => {
                     variant.mid_stretched = Some(false);
+                    variant.class = MathClass::Fence;
                 }
                 _ => {}
             }
diff --git a/tests/ref/math-lr-mid.png b/tests/ref/math-lr-mid.png
index e4f1e6716..1e14759e6 100644
Binary files a/tests/ref/math-lr-mid.png and b/tests/ref/math-lr-mid.png differ
diff --git a/tests/suite/math/delimited.typ b/tests/suite/math/delimited.typ
index 98579947b..42a67c4ea 100644
--- a/tests/suite/math/delimited.typ
+++ b/tests/suite/math/delimited.typ
@@ -48,9 +48,9 @@ $ lr(
 --- math-lr-mid ---
 // Test middle functions
 $ { x mid(|) sum_(i=1)^oo phi_i (x) < 1 } \
-  { integral |x| dif x
+  { integral |dot|
       mid(bar.v.double)
-    floor(hat(A) mid(|) { x mid(|) y } mid(|) A) } $
+    floor(hat(I) mid(slash) { dot mid(|) dot } mid(|) I/n) } $
 
 --- math-lr-unbalanced ---
 // Test unbalanced delimiters.