diff --git a/library/std/src/process.rs b/library/std/src/process.rs
index 9252aba903f..6903ba90560 100644
--- a/library/std/src/process.rs
+++ b/library/std/src/process.rs
@@ -1611,6 +1611,9 @@ impl fmt::Display for ExitStatusError {
     }
 }
 
+#[unstable(feature = "exit_status_error", issue = "84908")]
+impl crate::error::Error for ExitStatusError {}
+
 /// This type represents the status code a process can return to its
 /// parent under normal termination.
 ///