diff --git a/.azure/azure-pipelines.yml b/.azure/azure-pipelines.yml
index 7ec002dd74..fc239032e0 100644
--- a/.azure/azure-pipelines.yml
+++ b/.azure/azure-pipelines.yml
@@ -7,6 +7,12 @@ include:
 - release-*
 
 
+pr:
+  branches:
+    include:
+    - master
+    - releases/*
+
 pool:
   vmImage: ubuntu-16.04
 #Your build pipeline references an undefined variable named ‘Parameters.RestoreBuildProjects’. Create or edit the build pipeline for this YAML file, define the variable on the Variables tab. See https://go.microsoft.com/fwlink/?linkid=865972