diff --git a/MANIFEST.in b/MANIFEST.in
index 599b046..3df1d19 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -4,7 +4,6 @@ include ksw2_dispatch.c
 include main.c
 include README.md
 include sse2neon/emmintrin.h
-include python/mappy.c
 include python/cmappy.h
 include python/cmappy.pxd
 include python/mappy.pyx