diff --git a/hyperactor_mesh/src/alloc/process.rs b/hyperactor_mesh/src/alloc/process.rs
index 9c4255ee6..33f91f71f 100644
--- a/hyperactor_mesh/src/alloc/process.rs
+++ b/hyperactor_mesh/src/alloc/process.rs
@@ -180,7 +180,7 @@ impl Child {
             stderr_tee,
         );
 
-        let process_pid = Arc::new(std::sync::Mutex::new(Some(process.id().unwrap() as i32)));
+        let process_pid = Arc::new(std::sync::Mutex::new(process.id().map(|id| id as i32)));
 
         let child = Self {
             local_rank,