diff --git a/src/platforms/posix/include/system_config.h b/src/platforms/posix/include/system_config.h
index 6259377494..72713983a3 100644
--- a/src/platforms/posix/include/system_config.h
+++ b/src/platforms/posix/include/system_config.h
@@ -1,4 +1,6 @@
 
+#pragma once
+
 /*
  * I2C busses
  */
diff --git a/src/platforms/qurt/include/board_config.h b/src/platforms/qurt/include/board_config.h
index 337e59fb47..e93f66b7f5 100644
--- a/src/platforms/qurt/include/board_config.h
+++ b/src/platforms/qurt/include/board_config.h
@@ -1,3 +1,5 @@
+#pragma once
+
 /*
  * I2C busses
  */