diff --git a/boards/addons/ginput/touch/ADS7843/ginput_lld_mouse_board_st_stm32f4_discovery.h b/boards/addons/ginput/touch/ADS7843/ginput_lld_mouse_board_st_stm32f4_discovery.h
index 465a83e5..df1c02a7 100644
--- a/boards/addons/ginput/touch/ADS7843/ginput_lld_mouse_board_st_stm32f4_discovery.h
+++ b/boards/addons/ginput/touch/ADS7843/ginput_lld_mouse_board_st_stm32f4_discovery.h
@@ -10,7 +10,10 @@
 
 /*
  * uGFX port used:  ChibiOS/RT
- * SPI port:        SPI2
+ *
+ * SCK:             GPIOB, 13
+ * MISO:            GPIOB, 14
+ * MOSI:            GPIOB, 15
  * CS:              GPIOC, 4
  * IRC:				GPIOC, 5
  *