diff --git a/api/v1/inferencepool_types.go b/api/v1/inferencepool_types.go
index 7f76b03d8..d2bcd9867 100644
--- a/api/v1/inferencepool_types.go
+++ b/api/v1/inferencepool_types.go
@@ -71,8 +71,7 @@ type InferencePoolSpec struct {
 	// Currently, the list may only include a single port definition.
 	// +kubebuilder:validation:MinItems=1
 	// +kubebuilder:validation:MaxItems=1
-	// +listType=map
-	// +listMapKey=number
+	// +listType=atomic
 	// +required
 	TargetPorts []Port `json:"targetPorts,omitempty"`
 
diff --git a/config/crd/bases/inference.networking.k8s.io_inferencepools.yaml b/config/crd/bases/inference.networking.k8s.io_inferencepools.yaml
index 92072eb57..25e0a4d3f 100644
--- a/config/crd/bases/inference.networking.k8s.io_inferencepools.yaml
+++ b/config/crd/bases/inference.networking.k8s.io_inferencepools.yaml
@@ -156,9 +156,7 @@ spec:
                 maxItems: 1
                 minItems: 1
                 type: array
-                x-kubernetes-list-map-keys:
-                - number
-                x-kubernetes-list-type: map
+                x-kubernetes-list-type: atomic
             required:
             - extensionRef
             - selector