diff --git a/apis/v1/object_reference_types.go b/apis/v1/object_reference_types.go
index 421572aceb..dd507b2136 100644
--- a/apis/v1/object_reference_types.go
+++ b/apis/v1/object_reference_types.go
@@ -156,7 +156,7 @@ type BackendObjectReference struct {
 // on the containing object.
 type ObjectReference struct {
 	// Group is the group of the referent. For example, "gateway.networking.k8s.io".
-	// When unspecified or empty string, core API group is inferred.
+	// When set to the empty string, core API group is inferred.
 	Group Group `json:"group"`
 
 	// Kind is kind of the referent. For example "ConfigMap" or "Service".
diff --git a/config/crd/experimental/gateway.networking.k8s.io_gateways.yaml b/config/crd/experimental/gateway.networking.k8s.io_gateways.yaml
index a13edd80b1..4e4b07f9b0 100644
--- a/config/crd/experimental/gateway.networking.k8s.io_gateways.yaml
+++ b/config/crd/experimental/gateway.networking.k8s.io_gateways.yaml
@@ -830,7 +830,7 @@ spec:
                                   group:
                                     description: |-
                                       Group is the group of the referent. For example, "gateway.networking.k8s.io".
-                                      When unspecified or empty string, core API group is inferred.
+                                      When set to the empty string, core API group is inferred.
                                     maxLength: 253
                                     pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
                                     type: string
@@ -2064,7 +2064,7 @@ spec:
                                   group:
                                     description: |-
                                       Group is the group of the referent. For example, "gateway.networking.k8s.io".
-                                      When unspecified or empty string, core API group is inferred.
+                                      When set to the empty string, core API group is inferred.
                                     maxLength: 253
                                     pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
                                     type: string
diff --git a/pkg/generated/openapi/zz_generated.openapi.go b/pkg/generated/openapi/zz_generated.openapi.go
index 54774d7cda..1c4fa188f7 100644
--- a/pkg/generated/openapi/zz_generated.openapi.go
+++ b/pkg/generated/openapi/zz_generated.openapi.go
@@ -5260,7 +5260,7 @@ func schema_sigsk8sio_gateway_api_apis_v1_ObjectReference(ref common.ReferenceCa
 				Properties: map[string]spec.Schema{
 					"group": {
 						SchemaProps: spec.SchemaProps{
-							Description: "Group is the group of the referent. For example, \"gateway.networking.k8s.io\". When unspecified or empty string, core API group is inferred.",
+							Description: "Group is the group of the referent. For example, \"gateway.networking.k8s.io\". When set to the empty string, core API group is inferred.",
 							Default:     "",
 							Type:        []string{"string"},
 							Format:      "",