diff --git a/src/path_serializer.rs b/src/path_serializer.rs
index 74eb9534..18a61707 100644
--- a/src/path_serializer.rs
+++ b/src/path_serializer.rs
@@ -36,3 +36,17 @@ where
 
     seq.end()
 }
+
+pub fn serialize_option_absolute<S, T>(
+    maybe_path: &Option<T>,
+    serializer: S,
+) -> Result<S::Ok, S::Error>
+where
+    S: Serializer,
+    T: AsRef<Path>,
+{
+    match maybe_path {
+        Some(path) => serialize_absolute(path, serializer),
+        None => serializer.serialize_none(),
+    }
+}
diff --git a/src/project.rs b/src/project.rs
index a81bbbf5..98aab9d1 100644
--- a/src/project.rs
+++ b/src/project.rs
@@ -269,6 +269,8 @@ pub struct ProjectNode {
     pub children: BTreeMap<String, ProjectNode>,
     pub properties: HashMap<String, UnresolvedRbxValue>,
     pub ignore_unknown_instances: Option<bool>,
+
+    #[serde(serialize_with = "crate::path_serializer::serialize_option_absolute")]
     pub path: Option<PathBuf>,
 }
 
diff --git a/src/snapshots/serve_session__change_file_in_project_after.snap b/src/snapshots/serve_session__change_file_in_project_after.snap
index 0efeb6c5..db346fb6 100644
--- a/src/snapshots/serve_session__change_file_in_project_after.snap
+++ b/src/snapshots/serve_session__change_file_in_project_after.snap
@@ -29,7 +29,7 @@ children:
             children: {}
             properties: {}
             ignore_unknown_instances: ~
-            path: "/foo\\file.txt"
+            path: /foo/file.txt
       relevant_paths:
         - /foo/file.txt
         - /foo/file.meta.json
diff --git a/src/snapshots/serve_session__change_file_in_project_before.snap b/src/snapshots/serve_session__change_file_in_project_before.snap
index c824b355..715cd903 100644
--- a/src/snapshots/serve_session__change_file_in_project_before.snap
+++ b/src/snapshots/serve_session__change_file_in_project_before.snap
@@ -29,7 +29,7 @@ children:
             children: {}
             properties: {}
             ignore_unknown_instances: ~
-            path: "/foo\\file.txt"
+            path: /foo/file.txt
       relevant_paths:
         - /foo/file.txt
         - /foo/file.meta.json