diff --git a/.gitignore b/.gitignore
index 6b7df00..837488d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,20 +1,21 @@
 *.egg-info/
 *.pyc
 *.sw?
 *~
 .coverage
 .eggs/
 .mypy_cache
 .tox
 __pycache__
 build/
 dist/
 version.txt
 .mypy_cache/
 .vscode/
 *.o
 swh/perfecthash/test_hash
 swh/perfecthash/hash.gcda
 swh/perfecthash/hash.gcno
 swh/perfecthash/test_hash.lcov
 swh/perfecthash/html
+*.so
diff --git a/swh/perfecthash/_hash_cffi.abi3.so b/swh/perfecthash/_hash_cffi.abi3.so
deleted file mode 100755
index b77253a..0000000
Binary files a/swh/perfecthash/_hash_cffi.abi3.so and /dev/null differ