diff --git a/tests/end-to-end/docker-compose.yaml b/tests/end-to-end/docker-compose.yaml
index e6b0bf2bf..0bbec8ccb 100644
--- a/tests/end-to-end/docker-compose.yaml
+++ b/tests/end-to-end/docker-compose.yaml
@@ -23,6 +23,7 @@ services:
       - "../..:/app:ro"
     tmpfs:
       - "/app/borgmatic.egg-info"
+      - "/app/build"
     tty: true
     working_dir: /app
     entrypoint: /app/scripts/run-full-tests
diff --git a/tox.ini b/tox.ini
index b81588af7..3a2b47649 100644
--- a/tox.ini
+++ b/tox.ini
@@ -27,7 +27,9 @@ commands =
     pytest {posargs}
 
 [testenv:end-to-end]
+usedevelop = False
 deps = -rtest_requirements.txt
+       .
 passenv = COVERAGE_FILE
 commands =
     pytest {posargs} --no-cov tests/end-to-end