diff --git a/.gitignore b/.gitignore
index e43b0f98..e5eb2be4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,14 @@
+# Python
+*.pyc
+*.pyo
+
+# Cython
+*.c
+*.so
+*.pyd
+
+# Mac OS X
 .DS_Store
+
+# Build directory
+build/