1 files changed, 0 insertions, 1 deletions
diff --git a/thread.c b/thread.c
index 6f7118de47..8ec6d9bafb 100644
--- a/thread.c
+++ b/thread.c
@@ -3535,7 +3535,6 @@ rb_mutex_lock(VALUE self)
 		interrupted = lock_func(th, mutex, timeout_ms);
 	    });
 	    th->transition_for_lock = 0;
-	    remove_signal_thread_list(th);
 	    reset_unblock_function(th, &oldubf);
 
 	    th->locking_mutex = Qfalse;