diff --git a/radius_example/Makefile b/radius_example/Makefile
index 2649d263c..92e992c82 100644
--- a/radius_example/Makefile
+++ b/radius_example/Makefile
@@ -31,6 +31,8 @@ LIBS += ../src/utils/libutils.a
 ../src/radius/libradius.a:
 	$(MAKE) -C ../src/radius
 
+#CLAGS += -DCONFIG_IPV6
+
 OBJS_ex = radius_example.o
 
 radius_example: $(OBJS_ex) $(LIBS)
diff --git a/src/radius/Makefile b/src/radius/Makefile
index 32f572f72..054331caa 100644
--- a/src/radius/Makefile
+++ b/src/radius/Makefile
@@ -10,7 +10,7 @@ install:
 
 include ../lib.rules
 
-CFLAGS += -DCONFIG_IPV6
+#CFLAGS += -DCONFIG_IPV6
 
 LIB_OBJS= \
 	radius.o \