diff --git a/hw/acpi_mcpx.c b/hw/acpi_mcpx.c
index 7f5e39474f..a17c9a3ebd 100644
--- a/hw/acpi_mcpx.c
+++ b/hw/acpi_mcpx.c
@@ -33,7 +33,7 @@
 
 #include "acpi_mcpx.h"
 
-#define DEBUG
+//#define DEBUG
 
 #ifdef DEBUG
 # define MCPX_DPRINTF(format, ...)     printf(format, ## __VA_ARGS__)
diff --git a/hw/amd_smbus.c b/hw/amd_smbus.c
index 301a008234..c644f6a7c5 100644
--- a/hw/amd_smbus.c
+++ b/hw/amd_smbus.c
@@ -46,7 +46,7 @@
 
 
 
-#define DEBUG
+//#define DEBUG
 
 #ifdef DEBUG
 # define SMBUS_DPRINTF(format, ...)     printf(format, ## __VA_ARGS__)
diff --git a/hw/smbus_cx25871.c b/hw/smbus_cx25871.c
index 385dd3d860..e01595207b 100644
--- a/hw/smbus_cx25871.c
+++ b/hw/smbus_cx25871.c
@@ -32,7 +32,7 @@ typedef struct SMBusCX25871Device {
     uint8_t registers[256];
 } SMBusCX25871Device;
 
-#define DEBUG
+//#define DEBUG
 
 static void cx_quick_cmd(SMBusDevice *dev, uint8_t read)
 {
diff --git a/hw/smbus_eeprom.c b/hw/smbus_eeprom.c
index 26d4d0ad8a..a8bf8cbb02 100644
--- a/hw/smbus_eeprom.c
+++ b/hw/smbus_eeprom.c
@@ -26,7 +26,7 @@
 #include "i2c.h"
 #include "smbus.h"
 
-#define DEBUG
+//#define DEBUG
 
 typedef struct SMBusEEPROMDevice {
     SMBusDevice smbusdev;
diff --git a/hw/smbus_pic16lc.c b/hw/smbus_pic16lc.c
index e83021a59c..1ad25d6ff4 100644
--- a/hw/smbus_pic16lc.c
+++ b/hw/smbus_pic16lc.c
@@ -62,7 +62,7 @@
 static const char* pic_version_string = "P01";
 
 
-#define DEBUG
+//#define DEBUG
 
 typedef struct SMBusPIC16LCDevice {
     SMBusDevice smbusdev;
diff --git a/hw/xbox_pci.c b/hw/xbox_pci.c
index 73803d9524..3c9a77a24c 100644
--- a/hw/xbox_pci.c
+++ b/hw/xbox_pci.c
@@ -48,7 +48,7 @@
   */
 
 
-#define DEBUG
+//#define DEBUG
 
 #ifdef DEBUG
 # define XBOXPCI_DPRINTF(format, ...)     printf(format, ## __VA_ARGS__)