diff --git a/source/nan_compile.mk b/source/nan_compile.mk
index 2e3d9ae245c..1b2d41d3d24 100644
--- a/source/nan_compile.mk
+++ b/source/nan_compile.mk
@@ -58,7 +58,12 @@ DBG_CCFLAGS	+= -g
 
 # Support for new transform code ---------------------------------------
 ifeq ($(NAN_NEW_TRANSFORM), true)
-   CPPFLAGS += -DNEWTRANSFORM
+  	CPPFLAGS += -DNEWTRANSFORM
+endif
+
+# Support for new subsurf code -----------------------------------------
+ifeq ($(NAN_NEW_SUBSURF), true)
+  	CPPFLAGS += -DUSE_CCGSUBSURFLIB
 endif
 
 # OS dependent parts ---------------------------------------------------