diff --git a/crates/gpui/src/platform/mac/text_system.rs b/crates/gpui/src/platform/mac/text_system.rs
index 92135a2c96e5cb4c3587f7f01225be5b1fcd8b43..3faf4e6491e6588bdb1341d5a8845171562fa8a0 100644
--- a/crates/gpui/src/platform/mac/text_system.rs
+++ b/crates/gpui/src/platform/mac/text_system.rs
@@ -435,6 +435,7 @@ impl MacTextSystemState {
 
         {
             let mut text = text;
+            let mut break_ligature = true;
             for run in font_runs {
                 let text_run;
                 (text_run, text) = text.split_at(run.len);
@@ -444,7 +445,8 @@ impl MacTextSystemState {
                 string.replace_str(&CFString::new(text_run), CFRange::init(utf16_start, 0));
                 let utf16_end = string.char_len();
 
-                let cf_range = CFRange::init(utf16_start, utf16_end - utf16_start);
+                let length = utf16_end - utf16_start;
+                let cf_range = CFRange::init(utf16_start, length);
                 let font = &self.fonts[run.font_id.0];
 
                 let font_metrics = font.metrics();
@@ -452,6 +454,11 @@ impl MacTextSystemState {
                 max_ascent = max_ascent.max(font_metrics.ascent * font_scale);
                 max_descent = max_descent.max(-font_metrics.descent * font_scale);
 
+                let font_size = if break_ligature {
+                    px(font_size.0.next_up())
+                } else {
+                    font_size
+                };
                 unsafe {
                     string.set_attribute(
                         cf_range,
@@ -459,6 +466,7 @@ impl MacTextSystemState {
                         &font.native_font().clone_with_font_size(font_size.into()),
                     );
                 }
+                break_ligature = !break_ligature;
             }
         }
         // Retrieve the glyphs from the shaped line, converting UTF16 offsets to UTF8 offsets.
diff --git a/crates/gpui/src/platform/windows/direct_write.rs b/crates/gpui/src/platform/windows/direct_write.rs
index cb22948898fd496d6820e29088a9be7c5c502341..84539633c9e9c2ba2204d8ccaa94bd4156f8ea89 100644
--- a/crates/gpui/src/platform/windows/direct_write.rs
+++ b/crates/gpui/src/platform/windows/direct_write.rs
@@ -608,6 +608,7 @@ impl DirectWriteState {
             let mut first_run = true;
             let mut ascent = Pixels::default();
             let mut descent = Pixels::default();
+            let mut break_ligatures = false;
             for run in font_runs {
                 if first_run {
                     first_run = false;
@@ -616,6 +617,7 @@ impl DirectWriteState {
                     text_layout.GetLineMetrics(Some(&mut metrics), &mut line_count as _)?;
                     ascent = px(metrics[0].baseline);
                     descent = px(metrics[0].height - metrics[0].baseline);
+                    break_ligatures = !break_ligatures;
                     continue;
                 }
                 let font_info = &self.fonts[run.font_id.0];
@@ -636,10 +638,17 @@ impl DirectWriteState {
                 text_layout.SetFontCollection(collection, text_range)?;
                 text_layout
                     .SetFontFamilyName(&HSTRING::from(&font_info.font_family), text_range)?;
-                text_layout.SetFontSize(font_size.0, text_range)?;
+                let font_size = if break_ligatures {
+                    font_size.0.next_up()
+                } else {
+                    font_size.0
+                };
+                text_layout.SetFontSize(font_size, text_range)?;
                 text_layout.SetFontStyle(font_info.font_face.GetStyle(), text_range)?;
                 text_layout.SetFontWeight(font_info.font_face.GetWeight(), text_range)?;
                 text_layout.SetTypography(&font_info.features, text_range)?;
+
+                break_ligatures = !break_ligatures;
             }
 
             let mut runs = Vec::new();