diff --git a/.coveragerc b/.coveragerc
index cb69a0c..5df32f5 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -1,5 +1,10 @@
 [run]
 source = zope.tal
+omit =
+   src/zope/tal/tests/run.py
+   src/zope/tal/tests/markbench.py
+   src/zope/tal/timer.py
+   src/zope/tal/runtest.py
 
 [report]
 precision = 2
diff --git a/.gitignore b/.gitignore
index ea2fef7..4b51bb9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@ develop-eggs/
 .coverage
 coverage.xml
 nosetests.xml
+htmlcov/
diff --git a/tox.ini b/tox.ini
index bdd3774..a62d402 100644
--- a/tox.ini
+++ b/tox.ini
@@ -14,7 +14,7 @@ basepython =
     python2.7
 commands =
     coverage run -m zope.testrunner --test-path=src
-    coverage report --fail-under=82
+    coverage report --fail-under=87
 deps =
     {[testenv]deps}
     coverage