diff --git a/include/osmocom/gprs/gprs_bssgp.h b/include/osmocom/gprs/gprs_bssgp.h
index eb4e721..f229253 100644
--- a/include/osmocom/gprs/gprs_bssgp.h
+++ b/include/osmocom/gprs/gprs_bssgp.h
@@ -1,5 +1,4 @@
-#ifndef _GPRS_BSSGP_H
-#define _GPRS_BSSGP_H
+#pragma once
 
 #include <stdint.h>
 #include <osmocom/core/timer.h>
@@ -207,5 +206,3 @@
 void bssgp_set_log_ss(int ss);
 
 int bssgp_prim_cb(struct osmo_prim_hdr *oph, void *ctx);
-
-#endif /* _GPRS_BSSGP_H */
diff --git a/include/osmocom/gprs/gprs_bssgp_bss.h b/include/osmocom/gprs/gprs_bssgp_bss.h
index f34281e..9e0cb66 100644
--- a/include/osmocom/gprs/gprs_bssgp_bss.h
+++ b/include/osmocom/gprs/gprs_bssgp_bss.h
@@ -1,5 +1,4 @@
-#ifndef _BSSGP_BSS_H
-#define _BSSGP_BSS_H
+#pragma once
 
 #include <osmocom/core/msgb.h>
 #include <osmocom/gprs/gprs_bssgp.h>
@@ -72,4 +71,3 @@
 int bssgp_tx_fc_ms(struct bssgp_bvc_ctx *bctx, uint32_t tlli, uint8_t tag,
 		   uint32_t ms_bucket_size, uint32_t bucket_leak_rate,
 		   uint8_t *bucket_full_ratio);
-#endif
diff --git a/include/osmocom/gprs/gprs_msgb.h b/include/osmocom/gprs/gprs_msgb.h
index e277696..06f5cca 100644
--- a/include/osmocom/gprs/gprs_msgb.h
+++ b/include/osmocom/gprs/gprs_msgb.h
@@ -1,5 +1,4 @@
-#ifndef _LIBGB_MSGB_H
-#define _LIBGB_MSGB_H
+#pragma once
 
 #include <stdint.h>
 /* the data structure stored in msgb->cb for libgb apps */
@@ -34,4 +33,3 @@
 #include <osmocom/core/logging.h>
 int gprs_log_filter_fn(const struct log_context *ctx,
 			struct log_target *tar);
-#endif
diff --git a/include/osmocom/gprs/gprs_ns.h b/include/osmocom/gprs/gprs_ns.h
index 296800e..b4af61b 100644
--- a/include/osmocom/gprs/gprs_ns.h
+++ b/include/osmocom/gprs/gprs_ns.h
@@ -1,5 +1,4 @@
-#ifndef _GPRS_NS_H
-#define _GPRS_NS_H
+#pragma once
 
 #include <stdint.h>
 
@@ -215,5 +214,3 @@
 void gprs_ns_set_log_ss(int ss);
 
 /*! }@ */
-
-#endif
diff --git a/include/osmocom/gprs/gprs_ns_frgre.h b/include/osmocom/gprs/gprs_ns_frgre.h
index abcd43f..72ef7d1 100644
--- a/include/osmocom/gprs/gprs_ns_frgre.h
+++ b/include/osmocom/gprs/gprs_ns_frgre.h
@@ -1,6 +1,3 @@
-#ifndef _GPRS_NS_FRGRE_H
-#define _GPRS_NS_FRGRE_H
+#pragma once
 
 int gprs_ns_frgre_sendmsg(struct gprs_nsvc *nsvc, struct msgb *msg);
-
-#endif
diff --git a/include/osmocom/gprs/protocol/gsm_08_16.h b/include/osmocom/gprs/protocol/gsm_08_16.h
index 4c3eda3..8b2ac56 100644
--- a/include/osmocom/gprs/protocol/gsm_08_16.h
+++ b/include/osmocom/gprs/protocol/gsm_08_16.h
@@ -1,5 +1,4 @@
-#ifndef _OSMO_08_16_H
-#define _OSMO_08_16_H
+#pragma once
 
 /* GPRS Networks Service (NS) messages on the Gb interface
  * 3GPP TS 08.16 version 8.0.1 Release 1999 / ETSI TS 101 299 V8.0.1 (2002-05)
@@ -81,5 +80,3 @@
 	NS_CAUSE_UNKN_IP_ADDR		= 0x13,
 	NS_CAUSE_UNKN_IP_TEST_FAILED	= 0x14,
 };
-
-#endif
diff --git a/include/osmocom/gprs/protocol/gsm_08_18.h b/include/osmocom/gprs/protocol/gsm_08_18.h
index 3a351ea..529e988 100644
--- a/include/osmocom/gprs/protocol/gsm_08_18.h
+++ b/include/osmocom/gprs/protocol/gsm_08_18.h
@@ -1,5 +1,4 @@
-#ifndef _OSMO_08_18_H
-#define _OSMO_08_18_H
+#pragma once
 
 #include <stdint.h>
 
@@ -140,5 +139,3 @@
 	BSSGP_CAUSE_PROTO_ERR_UNSPEC	= 0x27,
 	BSSGP_CAUSE_PDU_INCOMP_FEAT	= 0x28,
 };
-
-#endif