diff --git a/.github/workflows/test-xenial.md b/.github/workflows/test-xenial.md
index 0388dd1c2..9a3ef148e 100644
--- a/.github/workflows/test-xenial.md
+++ b/.github/workflows/test-xenial.md
@@ -3,6 +3,10 @@ on:
   push:
     paths-ignore:
     - 'docs/**'
+  pull_request:
+    types: [opened, ready_for_review, review_requested]
+    paths-ignore:
+    - 'docs/**'
 jobs:
   test-xenial:
     runs-on: ubuntu-16.04