diff --git a/threadframe/Makefile.in b/threadframe/Makefile.am
similarity index 92%
rename from threadframe/Makefile.in
rename to threadframe/Makefile.am
index 16861b3d..e2cbd43e 100644
--- a/threadframe/Makefile.in
+++ b/threadframe/Makefile.am
@@ -1,5 +1,3 @@
-prefix = @prefix@
-
 all:
 	python setup.py build