diff --git a/embed/trezorhal/usb.c b/embed/trezorhal/usb.c
index 692cb53b6..6f548a328 100644
--- a/embed/trezorhal/usb.c
+++ b/embed/trezorhal/usb.c
@@ -217,14 +217,14 @@ static const USBD_DescriptorsTypeDef usb_descriptors = {
 static uint8_t usb_class_init(USBD_HandleTypeDef *dev, uint8_t cfg_idx) {
     for (int i = 0; i < USBD_MAX_NUM_INTERFACES; i++) {
         switch (usb_ifaces[i].type) {
-        case USB_IFACE_TYPE_HID:
-            usb_hid_class_init(dev, &usb_ifaces[i].hid, cfg_idx);
-            break;
-        case USB_IFACE_TYPE_VCP:
-            usb_vcp_class_init(dev, &usb_ifaces[i].vcp, cfg_idx);
-            break;
-        default:
-            break;
+            case USB_IFACE_TYPE_HID:
+                usb_hid_class_init(dev, &usb_ifaces[i].hid, cfg_idx);
+                break;
+            case USB_IFACE_TYPE_VCP:
+                usb_vcp_class_init(dev, &usb_ifaces[i].vcp, cfg_idx);
+                break;
+            default:
+                break;
         }
     }
     return USBD_OK;
diff --git a/embed/trezorhal/usb_hid-impl.h b/embed/trezorhal/usb_hid-impl.h
index e50c9feff..d3bac4a2e 100644
--- a/embed/trezorhal/usb_hid-impl.h
+++ b/embed/trezorhal/usb_hid-impl.h
@@ -248,25 +248,25 @@ static int usb_hid_class_setup(USBD_HandleTypeDef *dev, usb_hid_state_t *state,
         case USB_REQ_TYPE_CLASS:
             switch (req->bRequest) {
 
-            case USB_HID_REQ_SET_PROTOCOL:
-                state->protocol = req->wValue;
-                break;
+                case USB_HID_REQ_SET_PROTOCOL:
+                    state->protocol = req->wValue;
+                    break;
 
-            case USB_HID_REQ_GET_PROTOCOL:
-                USBD_CtlSendData(dev, &state->protocol, sizeof(state->protocol));
-                break;
+                case USB_HID_REQ_GET_PROTOCOL:
+                    USBD_CtlSendData(dev, &state->protocol, sizeof(state->protocol));
+                    break;
 
-            case USB_HID_REQ_SET_IDLE:
-                state->idle_rate = req->wValue >> 8;
-                break;
+                case USB_HID_REQ_SET_IDLE:
+                    state->idle_rate = req->wValue >> 8;
+                    break;
 
-            case USB_HID_REQ_GET_IDLE:
-                USBD_CtlSendData(dev, &state->idle_rate, sizeof(state->idle_rate));
-                break;
+                case USB_HID_REQ_GET_IDLE:
+                    USBD_CtlSendData(dev, &state->idle_rate, sizeof(state->idle_rate));
+                    break;
 
-            default:
-                USBD_CtlError(dev, req);
-                return USBD_FAIL;
+                default:
+                    USBD_CtlError(dev, req);
+                    return USBD_FAIL;
             }
             break;