diff --git a/libraries/SPI/src/SPI.h b/libraries/SPI/src/SPI.h
index ee23f807..fa5beb24 100644
--- a/libraries/SPI/src/SPI.h
+++ b/libraries/SPI/src/SPI.h
@@ -35,8 +35,11 @@
 //#define USE_SW_SPI
 
 // Define USE_XMC_RELAX_KIT_SD allows to use the SD Lib to communicate with a SD Card over
-// the on-board SD Card Slot
-//#define USE_XMC_RELAX_KIT_SD
+// the on-board SD Card Slot. This feature is only available on XMC4700 RelaxKits.
+#if defined(XMC4700_Relax_Kit)
+    #define USE_XMC_RELAX_KIT_SD
+#endif
+
 
 #define SPI_MODE0 0x00
 #define SPI_MODE1 0x01
diff --git a/variants/XMC4700/config/XMC4700_Relax_Kit/pins_arduino.h b/variants/XMC4700/config/XMC4700_Relax_Kit/pins_arduino.h
index 29dcd245..bb5603d2 100644
--- a/variants/XMC4700/config/XMC4700_Relax_Kit/pins_arduino.h
+++ b/variants/XMC4700/config/XMC4700_Relax_Kit/pins_arduino.h
@@ -86,10 +86,10 @@ extern uint8_t MOSI;
 extern uint8_t MISO;
 extern uint8_t SCK;
 
-#define PIN_SPI_SS_SD    28
-#define PIN_SPI_MOSI_SD  29
-#define PIN_SPI_MISO_SD  30
-#define PIN_SPI_SCK_SD   31
+#define PIN_SPI_SS_SD    26
+#define PIN_SPI_MOSI_SD  27
+#define PIN_SPI_MISO_SD  28
+#define PIN_SPI_SCK_SD   29
 
 static const uint8_t SS_SD   = PIN_SPI_SS_SD;
 static const uint8_t MOSI_SD = PIN_SPI_MOSI_SD;