diff --git a/Controllers/PatriotViperController/PatriotViperController.h b/Controllers/PatriotViperController/PatriotViperController.h
index a49811ad..88f886e1 100644
--- a/Controllers/PatriotViperController/PatriotViperController.h
+++ b/Controllers/PatriotViperController/PatriotViperController.h
@@ -15,8 +15,8 @@
 #include <string>
 #include "i2c_smbus.h"
 
-typedef unsigned char	viper_dev_id;
-typedef unsigned short	viper_register;
+typedef unsigned char viper_dev_id;
+typedef unsigned char viper_register;
 
 enum
 {
diff --git a/Controllers/PatriotViperSteelController/PatriotViperSteelController.h b/Controllers/PatriotViperSteelController/PatriotViperSteelController.h
index 389d2aee..14d5afe2 100644
--- a/Controllers/PatriotViperSteelController/PatriotViperSteelController.h
+++ b/Controllers/PatriotViperSteelController/PatriotViperSteelController.h
@@ -13,7 +13,7 @@
 #include "i2c_smbus.h"
 
 typedef unsigned char viper_dev_id;
-typedef unsigned short viper_register;
+typedef unsigned char viper_register;
 
 enum
 {