1 files changed, 1 insertions, 1 deletions
diff --git a/process.c b/process.c
index 1e8546db0..f965161e2 100644
--- a/process.c
+++ b/process.c
@@ -976,7 +976,7 @@ static int forked_child = 0;
 #define before_exec() \
   (rb_enable_interrupt(), forked_child ? 0 : rb_thread_stop_timer_thread())
 #define after_exec() \
-  (rb_thread_start_timer_thread(), forked_child = 0, rb_disable_interrupt())
+  (rb_thread_reset_timer_thread(), rb_thread_start_timer_thread(), forked_child = 0, rb_disable_interrupt())
 #define before_fork() before_exec()
 #define after_fork() (GET_THREAD()->thrown_errinfo = 0, after_exec())