diff --git a/crates/text/src/tail_tests.rs b/crates/text/src/tail_tests.rs
index 9f771b81..890b254d 100644
--- a/crates/text/src/tail_tests.rs
+++ b/crates/text/src/tail_tests.rs
@@ -130,14 +130,23 @@ fn hanging_punctuation_outside_the_aligned_edge() {
     t.auto_resize = TextAutoResize::Height;
     let Some(plain) = laid(&t) else { return };
     let open = plain.glyphs[0].advance;
+    // Kerning may draw a glyph off its pen position (an x offset, e.g. Helvetica Neue's "re"), so
+    // each hanging line is checked against the same line set flush: every glyph moves by exactly
+    // the hanging mark's advance, which puts the letters' pen edge on the box edge.
+    let moved = |a: &TextLayout, b: &TextLayout, by: f64| {
+        a.glyphs.len() == b.glyphs.len() && a.glyphs.iter().zip(&b.glyphs).all(|(a, b)| (a.x - b.x - by).abs() < EPS)
+    };
     t.hanging_punctuation = true;
     let l = laid(&t).unwrap();
-    assert!((l.glyphs[0].x + open).abs() < EPS && l.glyphs[1].x.abs() < EPS, "left: the quote hangs, Q starts the line");
+    assert!(plain.glyphs[0].x.abs() < EPS && moved(&l, &plain, -open), "left: the quote hangs, Q starts the line");
     t.align_h = TextAlignH::Right;
+    t.hanging_punctuation = false;
+    let flush = laid(&t).unwrap();
+    t.hanging_punctuation = true;
     let l = laid(&t).unwrap();
-    let last = l.glyphs.last().unwrap();
-    let before = &l.glyphs[l.glyphs.len() - 2];
-    assert!((before.x + before.advance - 400.0).abs() < EPS && last.x >= 400.0 - EPS, "right: the full stop hangs past the edge");
+    let stop = l.glyphs.last().unwrap().advance;
+    let edge = flush.lines[0].x + flush.lines[0].width;
+    assert!((edge - 400.0).abs() < EPS && moved(&l, &flush, stop), "right: the full stop hangs past the edge");
     t.align_h = TextAlignH::Center;
     let (a, b) = (laid(&t).unwrap(), {
         t.hanging_punctuation = false;