diff --git a/libnfc/drivers/acr122_usb.c b/libnfc/drivers/acr122_usb.c
index 8931aab..4a88c61 100644
--- a/libnfc/drivers/acr122_usb.c
+++ b/libnfc/drivers/acr122_usb.c
@@ -428,7 +428,7 @@ acr122_usb_open(const nfc_context *context, const nfc_connstring connstring)
       }
 
 	  // Check if there are more than 0 alternative interfaces and claim the first one
-	  if (dev->config->interface->altsetting->bAlternateSetting > 0) {
+      if (dev->config->interface->altsetting->bAlternateSetting > 0) {
         res = usb_set_altinterface(data.pudh, 0);
         if (res < 0) {
           log_put(LOG_GROUP, LOG_CATEGORY, NFC_LOG_PRIORITY_ERROR, "Unable to set alternate setting on USB interface (%s)", _usb_strerror(res));
@@ -436,7 +436,7 @@ acr122_usb_open(const nfc_context *context, const nfc_connstring connstring)
           // we failed to use the specified device
           goto free_mem;
         }
-	  }
+      }
 
       // Allocate memory for the device info and specification, fill it and return the info
       pnd = nfc_device_new(context, connstring);