diff --git a/include/villas/fpga/vlnv.h b/include/villas/fpga/vlnv.h
index 554968b74..918e3aa89 100644
--- a/include/villas/fpga/vlnv.h
+++ b/include/villas/fpga/vlnv.h
@@ -25,8 +25,7 @@
  * @{
  */
 
-#ifndef _FPGA_VLNV_H_
-#define _FPGA_VLNV_H_
+#pragma once
 
 /* Forward declarations */
 struct list;
@@ -48,6 +47,4 @@ int fpga_vlnv_cmp(struct fpga_vlnv *a, struct fpga_vlnv *b);
 int fpga_vlnv_parse(struct fpga_vlnv *c, const char *vlnv);
 
 /** Release memory allocated by fpga_vlnv_parse(). */
-int fpga_vlnv_destroy(struct fpga_vlnv *v);
-
-#endif /** _FPGA_VLNV_H_ @} */
\ No newline at end of file
+int fpga_vlnv_destroy(struct fpga_vlnv *v);
\ No newline at end of file
diff --git a/include/villas/stats.h b/include/villas/stats.h
index 0741d48b8..f8569c8ce 100644
--- a/include/villas/stats.h
+++ b/include/villas/stats.h
@@ -21,8 +21,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  *********************************************************************************/
 
-#ifndef _STATS_H_
-#define _STATS_H_
+#pragma once
 
 #include <stdint.h>
 
@@ -89,6 +88,4 @@ void stats_print(struct stats *s, FILE *f, enum stats_format fmt, int verbose);
 
 void stats_send(struct stats *s, struct node *n);
 
-enum stats_id stats_lookup_id(const char *name);
-
-#endif /* _STATS_H_ */
+enum stats_id stats_lookup_id(const char *name);
\ No newline at end of file