diff --git a/lib/reline/windows.rb b/lib/reline/windows.rb
index 6b80f6ca2d..0bd8d1b147 100644
--- a/lib/reline/windows.rb
+++ b/lib/reline/windows.rb
@@ -122,13 +122,13 @@ class Reline::Windows
   end
 
   def self.get_screen_size
-    csbi = 0.chr * 24
+    csbi = 0.chr * 22
     @@GetConsoleScreenBufferInfo.call(@@hConsoleHandle, csbi)
     csbi[0, 4].unpack('SS').reverse
   end
 
   def self.cursor_pos
-    csbi = 0.chr * 24
+    csbi = 0.chr * 22
     @@GetConsoleScreenBufferInfo.call(@@hConsoleHandle, csbi)
     x = csbi[4, 2].unpack('s*').first
     y = csbi[6, 4].unpack('s*').first