diff --git a/source/core/version.h b/source/core/version.h
index e11683536..c8a5949a0 100644
--- a/source/core/version.h
+++ b/source/core/version.h
@@ -92,6 +92,5 @@ const int SAVEPICHEIGHT = 180;
 const int VID_MIN_WIDTH = 640;
 const int VID_MIN_HEIGHT = 400;
 #define NPOT_EMULATION
-#define BUILD_SKY
 
 #endif //__VERSION_H__