diff --git a/lib/reline/windows.rb b/lib/reline/windows.rb
index e44ba040c2..82fa72fc25 100644
--- a/lib/reline/windows.rb
+++ b/lib/reline/windows.rb
@@ -383,7 +383,7 @@ class Reline::Windows
     return unless csbi = get_console_screen_buffer_info
     buffer_width = csbi[0, 2].unpack1('S')
     attributes = csbi[8, 2].unpack1('S')
-    _window_left, window_top, _window_right, window_bottom = *csbi[10,8].unpack('S*')
+    _window_left, window_top, _window_right, window_bottom = *csbi[10, 8].unpack('S*')
     fill_length = buffer_width * (window_bottom - window_top + 1)
     screen_topleft = window_top * 65536
     written = 0.chr * 4