diff --git a/crates/language/src/buffer.rs b/crates/language/src/buffer.rs
index 311ef4d55b947888cd7fbc6706a9bd581f2dd27d..99eae4c2028a9bd3aa82a4facb9e2099e8b5dea4 100644
--- a/crates/language/src/buffer.rs
+++ b/crates/language/src/buffer.rs
@@ -3894,9 +3894,6 @@ impl BufferSnapshot {
                 text: item.text,
                 highlight_ranges: item.highlight_ranges,
                 name_ranges: item.name_ranges,
-                signature_range: item
-                    .signature_range
-                    .map(|r| self.anchor_after(r.start)..self.anchor_before(r.end)),
                 body_range: item
                     .body_range
                     .map(|r| self.anchor_after(r.start)..self.anchor_before(r.end)),
@@ -3940,15 +3937,6 @@ impl BufferSnapshot {
         let mut open_point = None;
         let mut close_point = None;
 
-        let mut signature_start = None;
-        let mut signature_end = None;
-        let mut extend_signature_range = |node: tree_sitter::Node| {
-            if signature_start.is_none() {
-                signature_start = Some(Point::from_ts_point(node.start_position()));
-            }
-            signature_end = Some(Point::from_ts_point(node.end_position()));
-        };
-
         let mut buffer_ranges = Vec::new();
         let mut add_to_buffer_ranges = |node: tree_sitter::Node, node_is_name| {
             let mut range = node.start_byte()..node.end_byte();
@@ -3965,12 +3953,10 @@ impl BufferSnapshot {
         for capture in mat.captures {
             if capture.index == config.name_capture_ix {
                 add_to_buffer_ranges(capture.node, true);
-                extend_signature_range(capture.node);
             } else if Some(capture.index) == config.context_capture_ix
                 || (Some(capture.index) == config.extra_context_capture_ix && include_extra_context)
             {
                 add_to_buffer_ranges(capture.node, false);
-                extend_signature_range(capture.node);
             } else {
                 if Some(capture.index) == config.open_capture_ix {
                     open_point = Some(Point::from_ts_point(capture.node.end_position()));
@@ -4033,17 +4019,12 @@ impl BufferSnapshot {
             last_buffer_range_end = buffer_range.end;
         }
 
-        let signature_range = signature_start
-            .zip(signature_end)
-            .map(|(start, end)| start..end);
-
         Some(OutlineItem {
             depth: 0, // We'll calculate the depth later
             range: item_point_range,
             text,
             highlight_ranges,
             name_ranges,
-            signature_range,
             body_range: open_point.zip(close_point).map(|(start, end)| start..end),
             annotation_range: None,
         })
diff --git a/crates/language/src/outline.rs b/crates/language/src/outline.rs
index 09c556cf98f58ea26925e1df8bde9d43ec72e6c7..d96cd90e03142c6498ae17bc63e1787d99e8557a 100644
--- a/crates/language/src/outline.rs
+++ b/crates/language/src/outline.rs
@@ -19,7 +19,6 @@ pub struct OutlineItem<T> {
     pub text: String,
     pub highlight_ranges: Vec<(Range<usize>, HighlightStyle)>,
     pub name_ranges: Vec<Range<usize>>,
-    pub signature_range: Option<Range<T>>,
     pub body_range: Option<Range<T>>,
     pub annotation_range: Option<Range<T>>,
 }
@@ -36,10 +35,6 @@ impl<T: ToPoint> OutlineItem<T> {
             text: self.text.clone(),
             highlight_ranges: self.highlight_ranges.clone(),
             name_ranges: self.name_ranges.clone(),
-            signature_range: self
-                .signature_range
-                .as_ref()
-                .map(|r| r.start.to_point(buffer)..r.end.to_point(buffer)),
             body_range: self
                 .body_range
                 .as_ref()
@@ -213,7 +208,6 @@ mod tests {
                 text: "class Foo".to_string(),
                 highlight_ranges: vec![],
                 name_ranges: vec![6..9],
-                signature_range: None,
                 body_range: None,
                 annotation_range: None,
             },
@@ -223,7 +217,6 @@ mod tests {
                 text: "private".to_string(),
                 highlight_ranges: vec![],
                 name_ranges: vec![],
-                signature_range: None,
                 body_range: None,
                 annotation_range: None,
             },
@@ -248,7 +241,6 @@ mod tests {
                 text: "fn process".to_string(),
                 highlight_ranges: vec![],
                 name_ranges: vec![3..10],
-                signature_range: None,
                 body_range: None,
                 annotation_range: None,
             },
@@ -258,7 +250,6 @@ mod tests {
                 text: "struct DataProcessor".to_string(),
                 highlight_ranges: vec![],
                 name_ranges: vec![7..20],
-                signature_range: None,
                 body_range: None,
                 annotation_range: None,
             },
diff --git a/crates/multi_buffer/src/multi_buffer.rs b/crates/multi_buffer/src/multi_buffer.rs
index 8d72e919a4802c1875c956fc3e6d72fc0e9a2ade..8dd75a4c8b02c5e09f9c8df4221944755c4ed672 100644
--- a/crates/multi_buffer/src/multi_buffer.rs
+++ b/crates/multi_buffer/src/multi_buffer.rs
@@ -6130,12 +6130,6 @@ impl MultiBufferSnapshot {
                         text: item.text,
                         highlight_ranges: item.highlight_ranges,
                         name_ranges: item.name_ranges,
-                        signature_range: item.signature_range.and_then(|signature_range| {
-                            Some(
-                                self.anchor_in_excerpt(*excerpt_id, signature_range.start)?
-                                    ..self.anchor_in_excerpt(*excerpt_id, signature_range.end)?,
-                            )
-                        }),
                         body_range: item.body_range.and_then(|body_range| {
                             Some(
                                 self.anchor_in_excerpt(*excerpt_id, body_range.start)?
@@ -6176,12 +6170,6 @@ impl MultiBufferSnapshot {
                         text: item.text,
                         highlight_ranges: item.highlight_ranges,
                         name_ranges: item.name_ranges,
-                        signature_range: item.signature_range.and_then(|signature_range| {
-                            Some(
-                                self.anchor_in_excerpt(excerpt_id, signature_range.start)?
-                                    ..self.anchor_in_excerpt(excerpt_id, signature_range.end)?,
-                            )
-                        }),
                         body_range: item.body_range.and_then(|body_range| {
                             Some(
                                 self.anchor_in_excerpt(excerpt_id, body_range.start)?
diff --git a/crates/outline_panel/src/outline_panel.rs b/crates/outline_panel/src/outline_panel.rs
index 5fd3103dff842bfbacc612536218ac7367b27ec4..863725ad851d5b2e2e44895d97d59fdb2f062f1a 100644
--- a/crates/outline_panel/src/outline_panel.rs
+++ b/crates/outline_panel/src/outline_panel.rs
@@ -2481,7 +2481,6 @@ impl OutlinePanel {
             &OutlineItem {
                 depth,
                 annotation_range: None,
-                signature_range: None,
                 range: search_data.context_range.clone(),
                 text: search_data.context_text.clone(),
                 highlight_ranges: search_data