diff --git a/src/hal/lopy4.h b/src/hal/lopy4.h
index 6b93baad..e98408b1 100644
--- a/src/hal/lopy4.h
+++ b/src/hal/lopy4.h
@@ -6,12 +6,13 @@
 // Hardware related definitions for Pycom LoPy4 Board
 
 #define HAS_LORA 1       // comment out if device shall not send data via LoRa
+
 #define HAS_SPI 1        // comment out if device shall not send data via SPI
-// pin definitions for SPI slave interface
-#define SPI_MOSI GPIO_NUM_22
-#define SPI_MISO GPIO_NUM_33
-#define SPI_SCLK GPIO_NUM_26
-#define SPI_CS GPIO_NUM_36
+// pin definitions for local wired SPI slave interface
+#define SPI_MOSI  (22)
+#define SPI_MISO  (33)
+#define SPI_SCLK  (26)
+#define SPI_CS    (36)
 
 #define CFG_sx1276_radio 1
 //#define HAS_LED NOT_A_PIN // LoPy4 has no on board mono LED, we use on board RGB LED