diff --git a/src/common/nvidia_flags.h b/src/common/nvidia_flags.h
index 75a0233ac..8930efcec 100644
--- a/src/common/nvidia_flags.h
+++ b/src/common/nvidia_flags.h
@@ -2,6 +2,8 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#pragma once
+
 namespace Common {
 
 /// Configure platform specific flags for Nvidia's driver