diff --git a/jjb/metal3/job_bml_integration_tests.yml b/jjb/metal3/job_bml_integration_tests.yml
index 63ffd82..705458e 100644
--- a/jjb/metal3/job_bml_integration_tests.yml
+++ b/jjb/metal3/job_bml_integration_tests.yml
@@ -83,6 +83,11 @@
         artifact-num-to-keep: -1
     - github:
         url: https://github.com/{org}/{repo}
+    - build-blocker:
+        use-build-blocker: true
+        blocking-jobs:
+            - ".*_bml_integration_tests_*"
+        block-level: 'GLOBAL'
 
     triggers:
     - github-pull-request:
diff --git a/jjb/metal3/job_bml_main_integration_tests.yml b/jjb/metal3/job_bml_main_integration_tests.yml
index e532ded..a246087 100644
--- a/jjb/metal3/job_bml_main_integration_tests.yml
+++ b/jjb/metal3/job_bml_main_integration_tests.yml
@@ -81,6 +81,11 @@
         num-to-keep: 300
         artifact-days-to-keep: -1
         artifact-num-to-keep: -1
+    - build-blocker:
+        use-build-blocker: true
+        blocking-jobs:
+            - ".*_bml_integration_tests_*"
+        block-level: 'GLOBAL'
 
     triggers:
     - timed: "H 2 * * *"