diff --git a/variants/promicro_nrf52840/variant.h b/variants/promicro_nrf52840/variant.h
index 780e4a0b..98489da1 100644
--- a/variants/promicro_nrf52840/variant.h
+++ b/variants/promicro_nrf52840/variant.h
@@ -44,7 +44,7 @@
 
 #define WIRE_INTERFACES_COUNT 2
 
-#define PIN_WIRE_SDA         (8)
+#define PIN_WIRE_SDA         (6)
 #define PIN_WIRE_SCL         (7)
 #define PIN_WIRE1_SDA        (13)
 #define PIN_WIRE1_SCL        (14)