diff --git a/src/hw_config_rev4.c b/src/hw_config_rev4.c
index d87e6cd..0cd55f7 100644
--- a/src/hw_config_rev4.c
+++ b/src/hw_config_rev4.c
@@ -173,12 +173,12 @@ static const struct HardwareDefinition HW4 = {
         .led = {
                 .smartcard = {
                         .port = GPIOA,
-                        .pin_number = GPIO_Pin_4,
+                        .pin_number = GPIO_Pin_7,
                         .mode = GPIO_Mode_Out_PP
                 },
                 .oath = {
                         .port = GPIOA,
-                        .pin_number = GPIO_Pin_7,
+                        .pin_number = GPIO_Pin_4,
                         .mode = GPIO_Mode_Out_PP
                 }
         }