2 files changed, 10 insertions, 0 deletions
diff --git a/src/superio/nsc/pc87351/chip.h b/src/superio/nsc/pc87351/chip.h
index d62b1b3855..44af196c64 100644
--- a/src/superio/nsc/pc87351/chip.h
+++ b/src/superio/nsc/pc87351/chip.h
@@ -19,6 +19,9 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
+#ifndef SUPERIO_NSC_PC87351_CHIP_H
+#define SUPERIO_NSC_PC87351_CHIP_H
+
 struct chip_operations;
 extern struct chip_operations superio_nsc_pc87351_ops;
 
@@ -29,3 +32,5 @@ struct superio_nsc_pc87351_config {
 	struct uart8250 com1, com2;
 	struct pc_keyboard keyboard;
 };
+
+#endif
diff --git a/src/superio/nsc/pc87351/pc87351.h b/src/superio/nsc/pc87351/pc87351.h
index f3e0fde112..fcf6090e5c 100644
--- a/src/superio/nsc/pc87351/pc87351.h
+++ b/src/superio/nsc/pc87351/pc87351.h
@@ -19,6 +19,9 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  */
 
+#ifndef SUPERIO_NSC_PC87351_PC87351_H
+#define SUPERIO_NSC_PC87351_PC87351_H
+
 #define PC87351_FDC  0x00 /* Floppy */
 #define PC87351_PP   0x01 /* Parallel port */
 #define PC87351_SP2  0x02 /* Com2 */
@@ -28,3 +31,5 @@
 #define PC87351_KBCK 0x06 /* Keyboard */
 #define PC87351_GPIO 0x07 /* General purpose IO */
 #define PC87351_FSD  0x08 /* Fan speed device */
+
+#endif