diff --git a/crates/editor/src/display_map/custom_highlights.rs b/crates/editor/src/display_map/custom_highlights.rs
index c9202280bf957fac4d729bab558f686c0f62e774..1ece2493e3228536999036a32959a6228f0f7cd1 100644
--- a/crates/editor/src/display_map/custom_highlights.rs
+++ b/crates/editor/src/display_map/custom_highlights.rs
@@ -79,12 +79,15 @@ fn create_highlight_endpoints(
             let start_ix = ranges
                 .binary_search_by(|probe| probe.end.cmp(&start, buffer).then(cmp::Ordering::Less))
                 .unwrap_or_else(|i| i);
+            let end_ix = ranges[start_ix..]
+                .binary_search_by(|probe| {
+                    probe.start.cmp(&end, buffer).then(cmp::Ordering::Greater)
+                })
+                .unwrap_or_else(|i| i);
 
-            for range in &ranges[start_ix..] {
-                if range.start.cmp(&end, buffer).is_ge() {
-                    break;
-                }
+            highlight_endpoints.reserve(2 * end_ix);
 
+            for range in &ranges[start_ix..][..end_ix] {
                 let start = range.start.to_offset(buffer);
                 let end = range.end.to_offset(buffer);
                 if start == end {