diff --git a/build_inplace b/build_inplace
index 0b7b999d..084bab05 100755
--- a/build_inplace
+++ b/build_inplace
@@ -1,4 +1,5 @@
 #!/bin/sh
 
 python setup.py build_ext --inplace "$@"
+test -d build && python setup.py clean