diff --git a/source/Irrlicht/CB3DMeshWriter.cpp b/source/Irrlicht/CB3DMeshWriter.cpp
index 6f58ee51..dd6031ad 100644
--- a/source/Irrlicht/CB3DMeshWriter.cpp
+++ b/source/Irrlicht/CB3DMeshWriter.cpp
@@ -6,7 +6,6 @@
 
 #include "IrrCompileConfig.h"
 
-#define _IRR_COMPILE_WITH_B3D_WRITER_
 #ifdef _IRR_COMPILE_WITH_B3D_WRITER_
 
 #include "CB3DMeshWriter.h"