1 files changed, 11 insertions, 0 deletions
diff --git a/tox.ini b/tox.ini
index 695a2645a..aa9cf5ab9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -89,6 +89,17 @@ commands =
     python -m coverage erase
 changedir = {toxinidir}
 
+[testenv:coverage-html]
+setenv =
+    COVERAGE_FILE = {toxinidir}/.coverage
+deps =
+    coverage<5
+skip_install = true
+commands =
+    python -m coverage combine
+    python -m coverage html --ignore-errors --rcfile={toxinidir}/.coveragerc
+changedir = {toxinidir}
+
 [testenv:docs]
 skipsdist = True
 usedevelop = True