diff --git a/src/Rules.mk b/src/Rules.mk
index 2ebc132..5420eb9 100644
--- a/src/Rules.mk
+++ b/src/Rules.mk
@@ -11,7 +11,8 @@ include $(CIRCLEHOME)/Rules.mk
 
 INCLUDE += \
 	   -I $(CIRCLE_STDLIB_DIR)/include \
-	   -I $(NEWLIBDIR)/include
+	   -I $(NEWLIBDIR)/include\
+	   -I $(NET_DIR)
 
 LIBS += \
  	$(NEWLIBDIR)/lib/libm.a \