diff --git a/include/osmocom/gsm/gsm48.h b/include/osmocom/gsm/gsm48.h
index 1e7498a..151b14e 100644
--- a/include/osmocom/gsm/gsm48.h
+++ b/include/osmocom/gsm/gsm48.h
@@ -1,5 +1,4 @@
-#ifndef _OSMOCORE_GSM48_H
-#define _OSMOCORE_GSM48_H
+#pragma once
 
 #include <osmocom/gsm/tlv.h>
 #include <osmocom/gsm/protocol/gsm_04_08.h>
@@ -36,5 +35,3 @@
 int gsm48_construct_ra(uint8_t *buf, const struct gprs_ra_id *raid);
 
 int gsm48_number_of_paging_subchannels(struct gsm48_control_channel_descr *chan_desc);
-
-#endif