diff --git a/firmware/chartables.c b/firmware/chartables.c
index f4d64d164b..0ecd79f9d5 100644
--- a/firmware/chartables.c
+++ b/firmware/chartables.c
@@ -1,6 +1,10 @@
-//
-// Character generation tables
-//
+/*
+ * Character generation tables
+ */
+
+#include "config.h"
+
+#ifdef HAVE_LCD_BITMAP
 
 const unsigned char char_gen_6x8[][5][1] =
 {
@@ -301,3 +305,5 @@ const unsigned char char_gen_12x16[][11][2] =
 	0x10,0x00,0x18,0x00,0x0c,0x00,0x04,0x00,0x0c,0x00,0x18,0x00,0x10,0x00,0x18,0x00,0x0c,0x00,0x04,0x00,0x00,0x00,
 	0xff,0x3f,0xff,0x3f,0xff,0x3f,0xff,0x3f,0xff,0x3f,0xff,0x3f,0xff,0x3f,0xff,0x3f,0xff,0x3f,0xff,0x3f,0x00,0x00,
 };
+
+#endif /* HAVE_LCD_BITMAP */
diff --git a/firmware/lcd.c b/firmware/lcd.c
index 932cb5a3e7..64d52addcf 100644
--- a/firmware/lcd.c
+++ b/firmware/lcd.c
@@ -17,6 +17,8 @@
  *
  ****************************************************************************/
 
+#include "config.h"
+
 #include "lcd.h"
 
 void lcd_data (int data)
diff --git a/firmware/led.c b/firmware/led.c
index e8922e7891..488964bcb9 100644
--- a/firmware/led.c
+++ b/firmware/led.c
@@ -17,6 +17,8 @@
  *
  ****************************************************************************/
 
+#include "config.h"
+
 #include <led.h>
 
 #define turn_on() \
diff --git a/firmware/serial.c b/firmware/serial.c
index 1269083aab..f9708f98cf 100644
--- a/firmware/serial.c
+++ b/firmware/serial.c
@@ -17,6 +17,8 @@
  *
  ****************************************************************************/
 
+#include "config.h"
+
 #include <serial.h>
 #include <lcd.h>
 
diff --git a/firmware/system.c b/firmware/system.c
index 8e9c7ff692..0769ac7b45 100644
--- a/firmware/system.c
+++ b/firmware/system.c
@@ -17,6 +17,8 @@
  *
  ****************************************************************************/
 
+#include "config.h"
+
 #include <lcd.h>
 #include <led.h>