1 files changed, 2 insertions, 1 deletions
diff --git a/ext/pty/pty.c b/ext/pty/pty.c
index d7e6f3d8bb..de5cbf79e2 100644
--- a/ext/pty/pty.c
+++ b/ext/pty/pty.c
@@ -687,7 +687,8 @@ pty_check(int argc, VALUE *argv, VALUE self)
 
     if (!RTEST(exc)) return rb_last_status_get();
     raise_from_check(cpid, status);
-    return Qnil;		/* not reached */
+
+    UNREACHABLE;
 }
 
 static VALUE cPTY;