diff --git a/flake.nix b/flake.nix
index f5af3aa..fbde063 100644
--- a/flake.nix
+++ b/flake.nix
@@ -152,6 +152,7 @@
               start_all()
               machine.succeed("cd ${vmtest-src-dir} && coverage run --data-file=/tmp/.coverage -m pytest -p no:cacheprovider -v >&2")
               machine.succeed("coverage xml --rcfile=${vmtest-src-dir}/.coveragerc --data-file=/tmp/.coverage >&2")
+              machine.succeed("sed -i -E 's|<source>${pkgs.lib.strings.escapeRegex self.outPath}</source>|<source>selfprivacy_api</source>|g' coverage.xml")
               machine.copy_from_vm("coverage.xml", ".")
               machine.succeed("coverage report >&2")
             '';