diff --git a/Makefile b/Makefile
index c0c53f2..9aea747 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,8 @@
 EXAMPLES = examples/*.py
 MN = bin/mn
 BIN = $(MN)
-PYSRC = $(MININET) $(TEST) $(EXAMPLES) $(BIN)
+NDN = ndn/**/*.py
+PYSRC = $(MININET) $(TEST) $(EXAMPLES) $(BIN) $(NDN)
 MNEXEC = mnexec
 MANPAGES = mn.1 mnexec.1
 P8IGN = E251,E201,E302,E202