diff --git a/crates/typst-layout/src/math/run.rs b/crates/typst-layout/src/math/run.rs
index 8f12c509..b07f5893 100644
--- a/crates/typst-layout/src/math/run.rs
+++ b/crates/typst-layout/src/math/run.rs
@@ -419,7 +419,10 @@ impl MathRunFrameBuilder {
 }
 
 fn affects_row_height(fragment: &MathFragment) -> bool {
-    !matches!(fragment, MathFragment::Align | MathFragment::Linebreak)
+    !matches!(
+        fragment,
+        MathFragment::Align | MathFragment::Linebreak | MathFragment::Tag(_)
+    )
 }
 
 /// Create the spacing between two fragments in a given style.
diff --git a/tests/ref/math-equation-tag-affects-row-height.png b/tests/ref/math-equation-tag-affects-row-height.png
new file mode 100644
index 00000000..d0cc2359
Binary files /dev/null and b/tests/ref/math-equation-tag-affects-row-height.png differ
diff --git a/tests/suite/math/equation.typ b/tests/suite/math/equation.typ
index 6cdf7b7e..148a49d0 100644
--- a/tests/suite/math/equation.typ
+++ b/tests/suite/math/equation.typ
@@ -260,6 +260,15 @@ $ q &= sum_k ln A \
 // Test numbering on empty equations.
 #math.equation(numbering: "1", block: true, [])
 
+--- math-equation-tag-affects-row-height ---
+// Tags should not affect the row height of equations.
+#box($ - - $, fill: silver)
+#box($ #metadata(none) - - $, fill: silver) \
+#box($ a \ - - $, fill: silver)
+#box($ a \ #metadata(none) - - $, fill: silver)
+#box($ - - \ a $, fill: silver)
+#box($ #metadata(none) - - \ a $, fill: silver)
+
 --- issue-4187-alignment-point-affects-row-height ---
 // In this bug, a row of "-" only should have a very small height; but
 // after adding an alignment point "&", the row gains a larger height.