1 files changed, 1 insertions, 0 deletions

diff --git a/src/tp.lua b/src/tp.lua
index 2eacdc4..5fd8d22 100644
--- a/src/tp.lua
+++ b/src/tp.lua
@@ -64,6 +64,7 @@ function metat.__index:check(ok)
 end
 
 function metat.__index:command(cmd, arg)
+    cmd = string.upper(cmd)
     if arg then
         return self.c:send(cmd .. " " .. arg.. "\r\n")
     else