diff --git a/deploy/crd.yaml b/deploy/crd.yaml
index c93f0c4..f0fefd4 100644
--- a/deploy/crd.yaml
+++ b/deploy/crd.yaml
@@ -133,6 +133,7 @@ spec:
                             x-kubernetes-int-or-string: true
                           description: ResourceList is a set of (resource name, quantity)
                             pairs.
+                          nullable: true
                           type: object
                       type: object
                   required:
@@ -155,6 +156,7 @@ spec:
                       x-kubernetes-int-or-string: true
                     description: ResourceList is a set of (resource name, quantity)
                       pairs.
+                    nullable: true
                     type: object
                 type: object
               throttlerName:
@@ -190,6 +192,7 @@ spec:
                           x-kubernetes-int-or-string: true
                         description: ResourceList is a set of (resource name, quantity)
                           pairs.
+                        nullable: true
                         type: object
                     type: object
                 required:
@@ -206,6 +209,7 @@ spec:
                   resourceRequests:
                     additionalProperties:
                       type: boolean
+                    nullable: true
                     type: object
                 type: object
               used:
@@ -224,6 +228,7 @@ spec:
                       x-kubernetes-int-or-string: true
                     description: ResourceList is a set of (resource name, quantity)
                       pairs.
+                    nullable: true
                     type: object
                 type: object
             type: object
@@ -421,6 +426,7 @@ spec:
                             x-kubernetes-int-or-string: true
                           description: ResourceList is a set of (resource name, quantity)
                             pairs.
+                          nullable: true
                           type: object
                       type: object
                   required:
@@ -443,6 +449,7 @@ spec:
                       x-kubernetes-int-or-string: true
                     description: ResourceList is a set of (resource name, quantity)
                       pairs.
+                    nullable: true
                     type: object
                 type: object
               throttlerName:
@@ -478,6 +485,7 @@ spec:
                           x-kubernetes-int-or-string: true
                         description: ResourceList is a set of (resource name, quantity)
                           pairs.
+                        nullable: true
                         type: object
                     type: object
                 required:
@@ -494,6 +502,7 @@ spec:
                   resourceRequests:
                     additionalProperties:
                       type: boolean
+                    nullable: true
                     type: object
                 type: object
               used:
@@ -512,6 +521,7 @@ spec:
                       x-kubernetes-int-or-string: true
                     description: ResourceList is a set of (resource name, quantity)
                       pairs.
+                    nullable: true
                     type: object
                 type: object
             type: object
diff --git a/pkg/apis/schedule/v1alpha1/resource_amount.go b/pkg/apis/schedule/v1alpha1/resource_amount.go
index 706bf19..195d4d4 100644
--- a/pkg/apis/schedule/v1alpha1/resource_amount.go
+++ b/pkg/apis/schedule/v1alpha1/resource_amount.go
@@ -26,8 +26,10 @@ import (
 )
 
 type ResourceAmount struct {
-	ResourceCounts   *ResourceCounts     `json:"resourceCounts,omitempty"`
-	ResourceRequests corev1.ResourceList `json:"resourceRequests"`
+	ResourceCounts *ResourceCounts `json:"resourceCounts,omitempty"`
+
+	//+nullable
+	ResourceRequests corev1.ResourceList `json:"resourceRequests,omitempty"`
 }
 
 type ResourceCounts struct {
@@ -35,8 +37,10 @@ type ResourceCounts struct {
 }
 
 type IsResourceAmountThrottled struct {
-	ResourceCounts   IsResourceCountThrottled     `json:"resourceCounts"`
-	ResourceRequests map[corev1.ResourceName]bool `json:"resourceRequests"`
+	ResourceCounts IsResourceCountThrottled `json:"resourceCounts"`
+
+	//+nullable
+	ResourceRequests map[corev1.ResourceName]bool `json:"resourceRequests,omitempty"`
 }
 
 func (t IsResourceAmountThrottled) IsThrottledFor(pod *corev1.Pod) bool {