diff --git a/Firmware/variants/1_75mm_MK2-RAMBo10a-E3Dv6full.h b/Firmware/variants/1_75mm_MK2-RAMBo10a-E3Dv6full.h
index de09703a..21a968ae 100644
--- a/Firmware/variants/1_75mm_MK2-RAMBo10a-E3Dv6full.h
+++ b/Firmware/variants/1_75mm_MK2-RAMBo10a-E3Dv6full.h
@@ -325,5 +325,7 @@ THERMISTORS SETTINGS
 
 #define STACK_GUARD_TEST_VALUE 0xA2A2
 
+#define MAX_E_STEPS_PER_UNIT 250
+#define MIN_E_STEPS_PER_UNIT 100
 
 #endif //__CONFIGURATION_PRUSA_H