diff --git a/staging/src/k8s.io/apiextensions-apiserver/OWNERS b/staging/src/k8s.io/apiextensions-apiserver/OWNERS
index e8d56499d10..3c68513d7e8 100644
--- a/staging/src/k8s.io/apiextensions-apiserver/OWNERS
+++ b/staging/src/k8s.io/apiextensions-apiserver/OWNERS
@@ -12,5 +12,6 @@ reviewers:
   - jpbetz
   - roycaihw
   - alexzielenski
+  - jefftree
 labels:
   - sig/api-machinery
diff --git a/staging/src/k8s.io/apiserver/pkg/endpoints/discovery/OWNERS b/staging/src/k8s.io/apiserver/pkg/endpoints/discovery/OWNERS
index 5bc38de99b2..49d71eba514 100644
--- a/staging/src/k8s.io/apiserver/pkg/endpoints/discovery/OWNERS
+++ b/staging/src/k8s.io/apiserver/pkg/endpoints/discovery/OWNERS
@@ -2,3 +2,4 @@
 
 reviewers:
   - alexzielenski
+  - jefftree
diff --git a/staging/src/k8s.io/kube-aggregator/OWNERS b/staging/src/k8s.io/kube-aggregator/OWNERS
index aabbedf13c1..bb836cf4302 100644
--- a/staging/src/k8s.io/kube-aggregator/OWNERS
+++ b/staging/src/k8s.io/kube-aggregator/OWNERS
@@ -15,5 +15,6 @@ reviewers:
   - cheftako
   - logicalhan
   - alexzielenski
+  - jefftree
 labels:
   - sig/api-machinery
diff --git a/test/integration/apiserver/OWNERS b/test/integration/apiserver/OWNERS
index 4b6695467ef..631c1738430 100644
--- a/test/integration/apiserver/OWNERS
+++ b/test/integration/apiserver/OWNERS
@@ -1,3 +1,4 @@
 approvers:
   - apelisse
   - alexzielenski
+  - jefftree