diff --git a/docs/abra/hack.md b/docs/abra/hack.md
index ec6c2e82..df990437 100644
--- a/docs/abra/hack.md
+++ b/docs/abra/hack.md
@@ -40,6 +40,9 @@ bats tests/integration
 
 `ABRA_TEST_DOMAIN` should also have a DNS A record for `*.test.example.com`
 which points to the same server so that the test suite can deploy apps freely.
+It's advised that you re-use the same server and therefore the same Traefik
+deployment for running your integration tests. Then you'll have more stable
+results.
 
 If you're hacking on the tests, you can speed things up with the following.
 
@@ -51,12 +54,10 @@ This will avoid nuking `$ABRA_DIR` for each test which avoids the costly `git
 clone` of the catalogue on each test run. For the actual CI testing, we
 probably want this clean slate on each test to avoid confusion.
 
-You can filter on test names and/or tags to run specific kinds of tests.
+You can filter on test names to run specific kinds of tests.
 
 ```
-bats tests/integration \
-  --filter "validate app argument" \
-  --filter-tags "app_backup,\!slow"
+bats tests/integration --filter "validate app argument"
 ```
 
 ## Using the `abra` public API