1 files changed, 0 insertions, 5 deletions
diff --git a/thread.c b/thread.c
index 826a81b8b5..c2f6678b7b 100644
--- a/thread.c
+++ b/thread.c
@@ -4481,11 +4481,6 @@ rb_mutex_unlock(VALUE self)
     rb_mutex_t *mutex;
     GetMutexPtr(self, mutex);
 
-    /* When running trap handler */
-    if (!mutex->allow_trap && GET_THREAD()->interrupt_mask & TRAP_INTERRUPT_MASK) {
-	rb_raise(rb_eThreadError, "can't be called from trap context");
-    }
-
     err = rb_mutex_unlock_th(mutex, GET_THREAD());
     if (err) rb_raise(rb_eThreadError, "%s", err);