diff --git a/Firmware/printers.h b/Firmware/printers.h
index 513b690ca..b0b5e2ba0 100644
--- a/Firmware/printers.h
+++ b/Firmware/printers.h
@@ -3,12 +3,12 @@
 
 #define PRINTER_UNKNOWN 0
 
-#define PRINTER_MK1			100
-#define PRINTER_MK2			200
-#define PRINTER_MK2_SNMM	201
-#define PRINTER_MK25		250
-#define PRINTER_MK25_SNMM	251
-#define PRINTER_MK3			300
-#define PRINTER_MK3_SNMM	301
+#define PRINTER_MK1         100
+#define PRINTER_MK2         200
+#define PRINTER_MK2_SNMM    201
+#define PRINTER_MK25        250
+#define PRINTER_MK25_SNMM   251
+#define PRINTER_MK3         300
+#define PRINTER_MK3_SNMM    301
 
 #endif //PRINTERS_H