diff --git a/lib/src/fsmonitor.rs b/lib/src/fsmonitor.rs
index 75f91ab63..c75b39227 100644
--- a/lib/src/fsmonitor.rs
+++ b/lib/src/fsmonitor.rs
@@ -164,8 +164,9 @@ pub mod watchman {
 
         /// Query for changed files since the previous point in time.
         ///
-        /// The returned list of paths is absolute. If it is `None`, then the
-        /// caller must crawl the entire working copy themselves.
+        /// The returned list of paths is relative to the `working_copy_path`.
+        /// If it is `None`, then the caller must crawl the entire working copy
+        /// themselves.
         #[instrument(skip(self))]
         pub async fn query_changed_files(
             &self,
@@ -205,10 +206,7 @@ pub mod watchman {
                 let paths = files
                     .unwrap_or_default()
                     .into_iter()
-                    .map(|file_info| {
-                        let NameOnly { name } = file_info;
-                        self.resolved_root.path().join(name.into_inner())
-                    })
+                    .map(|NameOnly { name }| name.into_inner())
                     .collect_vec();
                 Ok((clock, Some(paths)))
             }
diff --git a/lib/src/local_working_copy.rs b/lib/src/local_working_copy.rs
index c864000fe..3d80850ce 100644
--- a/lib/src/local_working_copy.rs
+++ b/lib/src/local_working_copy.rs
@@ -57,7 +57,7 @@ use crate::matchers::{
 use crate::merge::{Merge, MergeBuilder, MergedTreeValue};
 use crate::merged_tree::{MergedTree, MergedTreeBuilder};
 use crate::op_store::{OperationId, WorkspaceId};
-use crate::repo_path::{FsPathParseError, RepoPath, RepoPathComponent, RepoPathJoin};
+use crate::repo_path::{RepoPath, RepoPathComponent, RepoPathJoin};
 use crate::settings::HumanByteSize;
 use crate::store::Store;
 use crate::tree::Tree;
@@ -866,16 +866,7 @@ impl TreeState {
                 let repo_paths = trace_span!("processing fsmonitor paths").in_scope(|| {
                     changed_files
                         .into_iter()
-                        .filter_map(|path| {
-                            match RepoPath::parse_fs_path(
-                                &self.working_copy_path,
-                                &self.working_copy_path,
-                                path,
-                            ) {
-                                Ok(repo_path) => Some(repo_path),
-                                Err(FsPathParseError::InputNotInRepo(_)) => None,
-                            }
-                        })
+                        .filter_map(RepoPath::from_relative_path)
                         .collect_vec()
                 });
 
diff --git a/lib/tests/test_local_working_copy.rs b/lib/tests/test_local_working_copy.rs
index 9e66e3caf..6bb9f3b62 100644
--- a/lib/tests/test_local_working_copy.rs
+++ b/lib/tests/test_local_working_copy.rs
@@ -22,6 +22,7 @@ use std::io::Write;
 use std::os::unix::fs::PermissionsExt;
 #[cfg(unix)]
 use std::os::unix::net::UnixListener;
+use std::path::Path;
 use std::sync::Arc;
 
 use itertools::Itertools;
@@ -927,10 +928,7 @@ fn test_fsmonitor() {
     testutils::write_working_copy_file(&workspace_root, &gitignore_path, "to/ignored\n");
 
     let snapshot = |locked_ws: &mut LockedWorkspace, paths: &[&RepoPath]| {
-        let fs_paths = paths
-            .iter()
-            .map(|p| p.to_fs_path(&workspace_root))
-            .collect();
+        let fs_paths = paths.iter().map(|p| p.to_fs_path(Path::new(""))).collect();
         locked_ws
             .locked_wc()
             .snapshot(SnapshotOptions {