diff --git a/sidecar-ffi/tests/sidecar.rs b/sidecar-ffi/tests/sidecar.rs
index 4c05738307..25dd11f9c2 100644
--- a/sidecar-ffi/tests/sidecar.rs
+++ b/sidecar-ffi/tests/sidecar.rs
@@ -44,6 +44,7 @@ fn test_ddog_ph_file_handling() {
 
     let mut file = unsafe { File::from_raw_fd(fd) };
     writeln!(file, "test").unwrap_err(); // file is closed, so write returns an error
+    std::mem::forget(file); // leak to avoid debug runtime SIGABRT: "file descriptor already closed"
 }
 
 #[test]
diff --git a/spawn_worker/src/unix/fork.rs b/spawn_worker/src/unix/fork.rs
index 8302c7af89..fdef6e1f90 100644
--- a/spawn_worker/src/unix/fork.rs
+++ b/spawn_worker/src/unix/fork.rs
@@ -64,6 +64,7 @@ mod single_threaded_tests {
     use io_lifetimes::OwnedFd;
     use std::{
         io::{Read, Write},
+        mem::forget,
         os::unix::{
             net::UnixStream,
             prelude::{AsRawFd, FromRawFd},
@@ -106,6 +107,8 @@ mod single_threaded_tests {
 
         assert_child_exit!(pid);
         assert_eq!(format!("child-{pid}"), out);
+
+        forget(sock_b); // leak to avoid debug runtime SIGABRT: "file descriptor already closed"
     }
 
     #[cfg(unix)]