diff --git a/src/gfx_compilers.h b/src/gfx_compilers.h
index 5af1244a..c34c7d02 100644
--- a/src/gfx_compilers.h
+++ b/src/gfx_compilers.h
@@ -430,6 +430,7 @@
 		#endif
 	#elif GFX_COMPILER == GFX_COMPILER_IAR
 		#define GFX_COMPILER_NAME					"IAR C++"
+		#define GFX_COMPILER_TESTED					TRUE
 		#define GFX_COMPILER_VERSION_MAJOR			((__VER__)/100)
 		#define GFX_COMPILER_VERSION_MINOR			((__VER__)%100)
 	#elif GFX_COMPILER == GFX_COMPILER_IBMXL