diff --git a/.gitignore b/.gitignore
index 35c2f84..85f6715 100644
--- a/.gitignore
+++ b/.gitignore
@@ -83,3 +83,9 @@
 
 # pkg-config file
 libndn-cpp-dev.pc
+
+# waf build system
+.waf-1*
+.lock*
+build/
+.waf-tools/*.pyc