diff --git a/swh/fuse/tests/conftest.py b/swh/fuse/tests/conftest.py
--- a/swh/fuse/tests/conftest.py
+++ b/swh/fuse/tests/conftest.py
@@ -64,3 +64,4 @@
     yield tmpdir.name
 
     subprocess.run(["fusermount", "-u", tmpdir.name], check=True)
+    fuse.join()