diff --git a/xrdp/lang.c b/xrdp/lang.c
index 0623b91e..6bcf7ebe 100644
--- a/xrdp/lang.c
+++ b/xrdp/lang.c
@@ -181,7 +181,7 @@ km_read_section(int fd, const char* section_name, struct xrdp_key_info* keymap)
         {
           code = g_atoi(name);
         }
-        if ((code >= 0) && (code < 128))
+        if ((code >= 0) && (code < 256))
         {
           pos1 = g_pos(value, ":");
           if (pos1 >= 0)
diff --git a/xrdp/xrdp_types.h b/xrdp/xrdp_types.h
index 8ecc945c..74041608 100644
--- a/xrdp/xrdp_types.h
+++ b/xrdp/xrdp_types.h
@@ -201,11 +201,11 @@ struct xrdp_key_info
 
 struct xrdp_keymap
 {
-  struct xrdp_key_info keys_noshift[128];
-  struct xrdp_key_info keys_shift[128];
-  struct xrdp_key_info keys_altgr[128];
-  struct xrdp_key_info keys_capslock[128];
-  struct xrdp_key_info keys_shiftcapslock[128];
+  struct xrdp_key_info keys_noshift[256];
+  struct xrdp_key_info keys_shift[256];
+  struct xrdp_key_info keys_altgr[256];
+  struct xrdp_key_info keys_capslock[256];
+  struct xrdp_key_info keys_shiftcapslock[256];
 };
 
 /* the window manager */