diff --git a/textureProperties.hh b/textureProperties.hh
index 01b3a94bc72e0facddf085ad31123a48de0e820c..b4d6f79f7e1cb36b1a7f0a2f7450fb6eb51d0da7 100644
--- a/textureProperties.hh
+++ b/textureProperties.hh
@@ -48,7 +48,7 @@
 \*===========================================================================*/
 
 
-
+#pragma once
 
 #include "ui_textureProperties.hh"
 #include "TextureData.hh"