1 files changed, 1 insertions, 0 deletions

diff --git a/gfx/rect.h b/gfx/rect.h
index a8406ef..9736331 100644
--- a/gfx/rect.h
+++ b/gfx/rect.h
@@ -11,6 +11,7 @@
 
 #ifndef GFX_RECT_H_
 #define GFX_RECT_H_
+#pragma once
 
 #include <iosfwd>