diff --git a/.github/workflows/matrix.yml b/.github/workflows/matrix.yml
index bb388e39b..6445dc039 100644
--- a/.github/workflows/matrix.yml
+++ b/.github/workflows/matrix.yml
@@ -1,7 +1,7 @@
 ---
 name: Matrix CI
 
-on:
+on:  # yamllint disable-line rule:truthy
   push:
   pull_request:
 
diff --git a/.yamllint b/.yamllint
index 75da2b702..08b89afd9 100644
--- a/.yamllint
+++ b/.yamllint
@@ -1,5 +1,8 @@
 ---
 extends: default
 
+ignore: |
+  roles/matrix-synapse/vars/workers.yml
+
 rules:
   line-length: disable