diff --git a/crates/collab/src/rpc.rs b/crates/collab/src/rpc.rs
index b8e16a8650..86fe8c8512 100644
--- a/crates/collab/src/rpc.rs
+++ b/crates/collab/src/rpc.rs
@@ -831,16 +831,28 @@ impl Server {
         request: TypedEnvelope<proto::UpdateWorktree>,
         response: Response<proto::UpdateWorktree>,
     ) -> Result<()> {
-        let (connection_ids, metadata_changed) = self.store_mut().await.update_worktree(
-            request.sender_id,
-            request.payload.project_id,
-            request.payload.worktree_id,
-            &request.payload.root_name,
-            &request.payload.removed_entries,
-            &request.payload.updated_entries,
-            request.payload.scan_id,
-        )?;
-        // TODO: log `extension_counts` from `Worktree`.
+        let (connection_ids, metadata_changed) = {
+            let mut store = self.store_mut().await;
+            let (connection_ids, metadata_changed, extension_counts) = store.update_worktree(
+                request.sender_id,
+                request.payload.project_id,
+                request.payload.worktree_id,
+                &request.payload.root_name,
+                &request.payload.removed_entries,
+                &request.payload.updated_entries,
+                request.payload.scan_id,
+            )?;
+            for (extension, count) in extension_counts {
+                tracing::info!(
+                    project_id = request.payload.project_id,
+                    worktree_id = request.payload.worktree_id,
+                    ?extension,
+                    %count,
+                    "worktree updated"
+                );
+            }
+            (connection_ids, metadata_changed)
+        };
 
         broadcast(request.sender_id, connection_ids, |connection_id| {
             self.peer
diff --git a/crates/collab/src/rpc/store.rs b/crates/collab/src/rpc/store.rs
index 1d88264d72..e206bcee74 100644
--- a/crates/collab/src/rpc/store.rs
+++ b/crates/collab/src/rpc/store.rs
@@ -577,8 +577,9 @@ impl Store {
         removed_entries: &[u64],
         updated_entries: &[proto::Entry],
         scan_id: u64,
-    ) -> Result<(Vec<ConnectionId>, bool)> {
+    ) -> Result<(Vec<ConnectionId>, bool, &HashMap<OsString, usize>)> {
         let project = self.write_project(project_id, connection_id)?;
+        let connection_ids = project.connection_ids();
         let mut worktree = project.worktrees.entry(worktree_id).or_default();
         let metadata_changed = worktree_root_name != worktree.root_name;
         worktree.root_name = worktree_root_name.to_string();
@@ -602,8 +603,7 @@ impl Store {
             worktree.entries.insert(entry.id, entry.clone());
         }
         worktree.scan_id = scan_id;
-        let connection_ids = project.connection_ids();
-        Ok((connection_ids, metadata_changed))
+        Ok((connection_ids, metadata_changed, &worktree.extension_counts))
     }
 
     pub fn project_connection_ids(