diff --git a/Firmware/config.h b/Firmware/config.h
index 24a77dc4..ca70dbcc 100644
--- a/Firmware/config.h
+++ b/Firmware/config.h
@@ -42,10 +42,18 @@
 #define W25X20CL_SPCR          SPI_SPCR(W25X20CL_SPI_RATE, 1, 1, 1, 0)
 #define W25X20CL_SPSR          SPI_SPSR(W25X20CL_SPI_RATE)
 
+#include "boards.h"
+#include "Configuration_prusa.h"
+
 //LANG - Multi-language support
 //#define LANG_MODE              0 // primary language only
 #define LANG_MODE              1 // sec. language support
+
+#if (MOTHERBOARD == BOARD_EINSY_1_0a)
 #define LANG_SIZE_RESERVED     0x2b00 // reserved space for secondary language (11008 bytes)
+#else //MOTHERBOARD == BOARD_EINSY_1_0a
+#define LANG_SIZE_RESERVED     0x2d00 // reserved space for secondary language (11520 bytes)
+#endif //MOTHERBOARD == BOARD_EINSY_1_0a
 
 
 #endif //_CONFIG_H