diff --git a/variants/STM32L4xx/L452RC(I-T-Y)_L452RE(I-T-Y)x(P)_L462RE(I-T-Y)/variant_LEAFONY_AP03.h b/variants/STM32L4xx/L452RC(I-T-Y)_L452RE(I-T-Y)x(P)_L462RE(I-T-Y)/variant_LEAFONY_AP03.h
index 31a98bd3fb..e21971f75d 100644
--- a/variants/STM32L4xx/L452RC(I-T-Y)_L452RE(I-T-Y)x(P)_L462RE(I-T-Y)/variant_LEAFONY_AP03.h
+++ b/variants/STM32L4xx/L452RC(I-T-Y)_L452RE(I-T-Y)x(P)_L462RE(I-T-Y)/variant_LEAFONY_AP03.h
@@ -19,7 +19,7 @@
 #define PA2                     1
 #define PC7                     2
 #define PB3                     3
-#define PB5                     1
+#define PB5                     4
 #define PB4                     5
 #define PA8                     6
 #define PB12                    7