diff --git a/.bzrignore b/.bzrignore
index e893a7d..15fa1e8 100644
--- a/.bzrignore
+++ b/.bzrignore
@@ -40,3 +40,6 @@
 .coverage
 coverage/*
 htmlcov/*
+.coverage
+coverage/*
+htmlcov/*
diff --git a/.gitignore b/.gitignore
index 63f4314..dafc9a9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -45,3 +45,6 @@
 .coverage
 coverage/
 htmlcov/
+.coverage
+coverage/
+htmlcov/
diff --git a/.hgignore b/.hgignore
index 6a2615b..efb013e 100644
--- a/.hgignore
+++ b/.hgignore
@@ -73,3 +73,6 @@
 .coverage
 coverage/
 htmlcov/
+.coverage
+coverage/
+htmlcov/