diff --git a/src/racket/src/port.c b/src/racket/src/port.c
index 2107b8aac4..8008d1efc9 100644
--- a/src/racket/src/port.c
+++ b/src/racket/src/port.c
@@ -8532,7 +8532,7 @@ static void kill_subproc(Scheme_Object *o, void *data)
 
 static void interrupt_subproc(Scheme_Object *o, void *data)
 {
-  (void)do_subprocess_kill(o, scheme_true, 0);
+  (void)do_subprocess_kill(o, scheme_false, 0);
 }
 #endif