1 files changed, 2 insertions, 1 deletions
diff --git a/tox.ini b/tox.ini
index 82e0f13ee..c083ef58e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -16,7 +16,8 @@ commands =
     py{35,36,37}-!external-!nocover: pytest --basetemp {envtmpdir} --cov=buildstream --cov-config .coveragerc {posargs}
     py{35,36,37}-!nocover: mkdir -p .coverage-reports
     external-!nocover: {envpython} {toxinidir}/tests/external_plugins.py {envtmpdir} --cov=buildstream --cov-append {posargs}
-    py{35,36,37}-!nocover: mv {envtmpdir}/.coverage {toxinidir}/.coverage-reports/.coverage.{env:COVERAGE_PREFIX:}{envname}
+    py{35,36,37}-!external-!nocover: mv {envtmpdir}/.coverage {toxinidir}/.coverage-reports/.coverage.{env:COVERAGE_PREFIX:}{envname}
+    py{35,36,37}-external-!nocover: - mv {envtmpdir}/.coverage {toxinidir}/.coverage-reports/.coverage.{env:COVERAGE_PREFIX:}{envname}
     # Running with coverage reporting disabled
     py{35,36,37}-!external-nocover: pytest --basetemp {envtmpdir} {posargs}
     external-nocover: {envpython} {toxinidir}/tests/external_plugins.py {envtmpdir} {posargs}