diff --git a/crates/model/src/text.rs b/crates/model/src/text.rs
index 362f43939..c83d8020f 100644
--- a/crates/model/src/text.rs
+++ b/crates/model/src/text.rs
@@ -434,6 +434,7 @@ pub struct RunProps {
     pub soft_edge: Option<f64>,
     /// Spelling/grammar errors are not flagged.
     pub no_proof: Option<bool>,
+    pub normalize_height: Option<bool>,
 }
 
 impl RunProps {
@@ -467,7 +468,8 @@ impl RunProps {
             glow,
             reflection,
             soft_edge,
-            no_proof
+            no_proof,
+            normalize_height
         );
     }
 }
diff --git a/crates/pptx/src/read/dml.rs b/crates/pptx/src/read/dml.rs
index a2ed6abe7..3b03e3bb3 100644
--- a/crates/pptx/src/read/dml.rs
+++ b/crates/pptx/src/read/dml.rs
@@ -548,6 +548,7 @@ pub fn rpr(imp: &mut Imp, part: &Part, r: &El) -> RunProps {
         spacing: r.f64("spc").map(|s| (s / 100.0).clamp(-4000.0, 4000.0)),
         kern: r.f64("kern").map(|k| (k / 100.0).clamp(0.0, 4000.0)),
         no_proof: r.bool("noProof"),
+        normalize_height: r.bool("normalizeH"),
         ..Default::default()
     };
     for e in r.elements() {
diff --git a/crates/pptx/src/write/dml.rs b/crates/pptx/src/write/dml.rs
index 320810958..23579350e 100644
--- a/crates/pptx/src/write/dml.rs
+++ b/crates/pptx/src/write/dml.rs
@@ -649,7 +649,8 @@ pub fn rpr(w: &mut W, x: &mut Exp, o: &mut Out, tag: &str, r: &RunProps) {
         )
         .o("spc", r.spacing.map(|s| (s.clamp(-4000.0, 4000.0) * 100.0).round() as i64))
         .o("baseline", r.baseline.map(|b| pct(b.clamp(-10.0, 10.0))))
-        .b("noProof", r.no_proof);
+        .b("noProof", r.no_proof)
+        .b("normalizeH", r.normalize_height);
     let has_fx = r.shadow.is_some() || r.inner_shadow.is_some() || r.glow.is_some() || r.reflection.is_some() || r.soft_edge.is_some();
     let has_kids = r.outline.is_some()
         || r.fill.is_some()
diff --git a/crates/pptx/tests/it/roundtrip.rs b/crates/pptx/tests/it/roundtrip.rs
index f651fc5c6..65cc5aa7d 100644
--- a/crates/pptx/tests/it/roundtrip.rs
+++ b/crates/pptx/tests/it/roundtrip.rs
@@ -468,6 +468,39 @@ fn text_and_formatting_round_trip() {
     assert_eq!(run.text, "x=1");
 }
 
+#[test]
+fn normalized_character_height_survives_two_pptx_round_trips() {
+    let mut p = Presentation::default();
+    let mut slide = new_slide(&mut p, "Normalized height");
+    let mut enabled = shape(&mut p, "Enabled", 10.0, 10.0, 200.0, 80.0);
+    let mut enabled_body = TextBody::from_text("enabled");
+    enabled_body.paragraphs[0].runs[0].props.normalize_height = Some(true);
+    enabled_body.paragraphs[0].runs[0].props.size = Some(18.0);
+    enabled_body.paragraphs[0].runs[0].props.caps = Some(Caps::Small);
+    enabled_body.paragraphs[0].runs[0].props.spacing = Some(1.5);
+    enabled.text = Some(enabled_body);
+    let mut disabled = shape(&mut p, "Disabled", 10.0, 100.0, 200.0, 80.0);
+    let mut disabled_body = TextBody::from_text("disabled");
+    disabled_body.paragraphs[0].runs[0].props.normalize_height = Some(false);
+    disabled.text = Some(disabled_body);
+    let mut absent = shape(&mut p, "Absent", 10.0, 190.0, 200.0, 80.0);
+    absent.text = Some(TextBody::from_text("absent"));
+    slide.shapes = vec![enabled, disabled, absent];
+    p.slides.push(Arc::new(slide));
+
+    let twice = round(&round(&p));
+    let slide = twice.slides.last().expect("added slide");
+    let run = &by_name(slide, "Enabled").text.as_ref().expect("text").paragraphs[0].runs[0];
+    assert_eq!(run.props.normalize_height, Some(true));
+    assert_eq!(run.props.size, Some(18.0));
+    assert_eq!(run.props.caps, Some(Caps::Small));
+    assert_eq!(run.props.spacing, Some(1.5));
+    let run = &by_name(slide, "Disabled").text.as_ref().expect("text").paragraphs[0].runs[0];
+    assert_eq!(run.props.normalize_height, Some(false));
+    let run = &by_name(slide, "Absent").text.as_ref().expect("text").paragraphs[0].runs[0];
+    assert_eq!(run.props.normalize_height, None);
+}
+
 #[test]
 fn shapes_fills_lines_effects_round_trip() {
     let p = rich_deck();