diff --git a/terraform/pipeline/azure-pipelines.yml b/terraform/pipeline/azure-pipelines.yml
index 03606d58..7ebfa5bb 100644
--- a/terraform/pipeline/azure-pipelines.yml
+++ b/terraform/pipeline/azure-pipelines.yml
@@ -1,6 +1,4 @@
 trigger:
-  # automatically runs on pull requests
-  # https://docs.microsoft.com/en-us/azure/devops/pipelines/repos/github?view=azure-devops&tabs=yaml#pr-triggers
   branches:
     include:
       - dev
@@ -15,6 +13,14 @@ trigger:
     include:
       - terraform/*
 
+pr:
+  branches:
+    include:
+      - "*"
+  paths:
+    include:
+      - terraform/*
+
 pool:
   vmImage: ubuntu-latest