diff --git a/crates/project/src/project.rs b/crates/project/src/project.rs
index efadbd707c..e161fcab91 100644
--- a/crates/project/src/project.rs
+++ b/crates/project/src/project.rs
@@ -1504,7 +1504,6 @@ impl Project {
             .and_then(|shared_buffers| shared_buffers.get(&envelope.payload.buffer_id).cloned())
             .ok_or_else(|| anyhow!("unknown buffer id {}", envelope.payload.buffer_id))?;
         let receipt = envelope.receipt();
-        let worktree_id = envelope.payload.worktree_id;
         let buffer_id = envelope.payload.buffer_id;
         let save = cx.spawn(|_, mut cx| async move {
             buffer.update(&mut cx, |buffer, cx| buffer.save(cx)).await
@@ -1519,7 +1518,6 @@ impl Project {
                         receipt,
                         proto::BufferSaved {
                             project_id,
-                            worktree_id,
                             buffer_id,
                             version: (&version).into(),
                             mtime: Some(mtime.into()),
diff --git a/crates/project/src/worktree.rs b/crates/project/src/worktree.rs
index 487411f97a..58271d8fdc 100644
--- a/crates/project/src/worktree.rs
+++ b/crates/project/src/worktree.rs
@@ -38,8 +38,7 @@ use std::{
     },
     time::{Duration, SystemTime},
 };
-use sum_tree::{Bias, TreeMap};
-use sum_tree::{Edit, SeekTarget, SumTree};
+use sum_tree::{Bias, Edit, SeekTarget, SumTree, TreeMap};
 use util::ResultExt;
 
 lazy_static! {
@@ -398,22 +397,17 @@ impl Worktree {
         operation: Operation,
         cx: &mut ModelContext<Self>,
     ) {
-        if let Some((project_id, worktree_id, rpc)) = match self {
+        if let Some((project_id, rpc)) = match self {
             Worktree::Local(worktree) => worktree
                 .share
                 .as_ref()
-                .map(|share| (share.project_id, worktree.id(), worktree.client.clone())),
-            Worktree::Remote(worktree) => Some((
-                worktree.project_id,
-                worktree.snapshot.id(),
-                worktree.client.clone(),
-            )),
+                .map(|share| (share.project_id, worktree.client.clone())),
+            Worktree::Remote(worktree) => Some((worktree.project_id, worktree.client.clone())),
         } {
             cx.spawn(|worktree, mut cx| async move {
                 if let Err(error) = rpc
                     .request(proto::UpdateBuffer {
                         project_id,
-                        worktree_id: worktree_id.0 as u64,
                         buffer_id,
                         operations: vec![language::proto::serialize_operation(&operation)],
                     })
@@ -1408,7 +1402,6 @@ impl language::File for File {
         version: clock::Global,
         cx: &mut MutableAppContext,
     ) -> Task<Result<(clock::Global, SystemTime)>> {
-        let worktree_id = self.worktree.read(cx).id().to_proto();
         self.worktree.update(cx, |worktree, cx| match worktree {
             Worktree::Local(worktree) => {
                 let rpc = worktree.client.clone();
@@ -1419,7 +1412,6 @@ impl language::File for File {
                     if let Some(project_id) = project_id {
                         rpc.send(proto::BufferSaved {
                             project_id,
-                            worktree_id,
                             buffer_id,
                             version: (&version).into(),
                             mtime: Some(entry.mtime.into()),
@@ -1436,7 +1428,6 @@ impl language::File for File {
                     let response = rpc
                         .request(proto::SaveBuffer {
                             project_id,
-                            worktree_id,
                             buffer_id,
                         })
                         .await?;
@@ -1467,14 +1458,12 @@ impl language::File for File {
         cx: &mut MutableAppContext,
     ) -> Option<Task<Result<()>>> {
         let worktree = self.worktree.read(cx);
-        let worktree_id = worktree.id().to_proto();
         let worktree = worktree.as_remote()?;
         let rpc = worktree.client.clone();
         let project_id = worktree.project_id;
         Some(cx.foreground().spawn(async move {
             rpc.request(proto::FormatBuffer {
                 project_id,
-                worktree_id,
                 buffer_id,
             })
             .await?;
@@ -1492,14 +1481,12 @@ impl language::File for File {
         self.worktree.update(cx, |worktree, cx| {
             if let Worktree::Remote(worktree) = worktree {
                 let project_id = worktree.project_id;
-                let worktree_id = worktree.id().to_proto();
                 let rpc = worktree.client.clone();
                 cx.background()
                     .spawn(async move {
                         if let Err(error) = rpc
                             .send(proto::CloseBuffer {
                                 project_id,
-                                worktree_id,
                                 buffer_id,
                             })
                             .await
diff --git a/crates/rpc/proto/zed.proto b/crates/rpc/proto/zed.proto
index 9891ce21cf..79e41f7704 100644
--- a/crates/rpc/proto/zed.proto
+++ b/crates/rpc/proto/zed.proto
@@ -144,35 +144,30 @@ message OpenBufferResponse {
 
 message CloseBuffer {
     uint64 project_id = 1;
-    uint64 worktree_id = 2;
-    uint64 buffer_id = 3;
+    uint64 buffer_id = 2;
 }
 
 message UpdateBuffer {
     uint64 project_id = 1;
-    uint64 worktree_id = 2;
-    uint64 buffer_id = 3;
+    uint64 buffer_id = 2;
     repeated Operation operations = 4;
 }
 
 message SaveBuffer {
     uint64 project_id = 1;
-    uint64 worktree_id = 2;
-    uint64 buffer_id = 3;
+    uint64 buffer_id = 2;
 }
 
 message BufferSaved {
     uint64 project_id = 1;
-    uint64 worktree_id = 2;
-    uint64 buffer_id = 3;
-    repeated VectorClockEntry version = 4;
-    Timestamp mtime = 5;
+    uint64 buffer_id = 2;
+    repeated VectorClockEntry version = 3;
+    Timestamp mtime = 4;
 }
 
 message FormatBuffer {
     uint64 project_id = 1;
-    uint64 worktree_id = 2;
-    uint64 buffer_id = 3;
+    uint64 buffer_id = 2;
 }
 
 message UpdateDiagnosticSummary {