diff --git a/.azure-pipelines.yml b/.azure-pipelines.yml
index 4e6a17c257..17812e3276 100644
--- a/.azure-pipelines.yml
+++ b/.azure-pipelines.yml
@@ -4,8 +4,16 @@
 # https://aka.ms/yaml
 
 trigger:
-- 'master'
-- '*/ci'
+  branches:
+    include:
+    - 'master'
+    - '*/ci'
+
+pr:
+  branches:
+    include:
+    - 'master'
+    - '*/ci'
 
 stages: