diff --git a/internal/provider/api7ee/status.go b/internal/provider/api7ee/status.go
index 0fc5fb79..9231a8ec 100644
--- a/internal/provider/api7ee/status.go
+++ b/internal/provider/api7ee/status.go
@@ -122,6 +122,7 @@ func (d *api7eeProvider) updateStatus(nnk types.NamespacedNameKind, condition me
 			Resource:       &gatewayv1.HTTPRoute{},
 			Mutator: status.MutatorFunc(func(obj client.Object) client.Object {
 				cp := obj.(*gatewayv1.HTTPRoute).DeepCopy()
+				condition.ObservedGeneration = cp.GetGeneration()
 				gatewayNs := cp.GetNamespace()
 				for i, ref := range cp.Status.Parents {
 					ns := gatewayNs
@@ -157,6 +158,7 @@ func (d *api7eeProvider) updateStatus(nnk types.NamespacedNameKind, condition me
 			Resource:       &gatewayv1alpha2.UDPRoute{},
 			Mutator: status.MutatorFunc(func(obj client.Object) client.Object {
 				cp := obj.(*gatewayv1alpha2.UDPRoute).DeepCopy()
+				condition.ObservedGeneration = cp.GetGeneration()
 				gatewayNs := cp.GetNamespace()
 				for i, ref := range cp.Status.Parents {
 					ns := gatewayNs
@@ -192,6 +194,7 @@ func (d *api7eeProvider) updateStatus(nnk types.NamespacedNameKind, condition me
 			Resource:       &gatewayv1alpha2.TCPRoute{},
 			Mutator: status.MutatorFunc(func(obj client.Object) client.Object {
 				cp := obj.(*gatewayv1alpha2.TCPRoute).DeepCopy()
+				condition.ObservedGeneration = cp.GetGeneration()
 				gatewayNs := cp.GetNamespace()
 				for i, ref := range cp.Status.Parents {
 					ns := gatewayNs
@@ -227,6 +230,7 @@ func (d *api7eeProvider) updateStatus(nnk types.NamespacedNameKind, condition me
 			Resource:       &gatewayv1.GRPCRoute{},
 			Mutator: status.MutatorFunc(func(obj client.Object) client.Object {
 				cp := obj.(*gatewayv1.GRPCRoute).DeepCopy()
+				condition.ObservedGeneration = cp.GetGeneration()
 				gatewayNs := cp.GetNamespace()
 				for i, ref := range cp.Status.Parents {
 					ns := gatewayNs
diff --git a/internal/provider/apisix/status.go b/internal/provider/apisix/status.go
index 327856ec..1fced4e8 100644
--- a/internal/provider/apisix/status.go
+++ b/internal/provider/apisix/status.go
@@ -123,6 +123,7 @@ func (d *apisixProvider) updateStatus(nnk types.NamespacedNameKind, condition me
 			Resource:       &gatewayv1.HTTPRoute{},
 			Mutator: status.MutatorFunc(func(obj client.Object) client.Object {
 				cp := obj.(*gatewayv1.HTTPRoute).DeepCopy()
+				condition.ObservedGeneration = cp.GetGeneration()
 				gatewayNs := cp.GetNamespace()
 				for i, ref := range cp.Status.Parents {
 					ns := gatewayNs
@@ -158,6 +159,7 @@ func (d *apisixProvider) updateStatus(nnk types.NamespacedNameKind, condition me
 			Resource:       &gatewayv1alpha2.UDPRoute{},
 			Mutator: status.MutatorFunc(func(obj client.Object) client.Object {
 				cp := obj.(*gatewayv1alpha2.UDPRoute).DeepCopy()
+				condition.ObservedGeneration = cp.GetGeneration()
 				gatewayNs := cp.GetNamespace()
 				for i, ref := range cp.Status.Parents {
 					ns := gatewayNs
@@ -193,6 +195,7 @@ func (d *apisixProvider) updateStatus(nnk types.NamespacedNameKind, condition me
 			Resource:       &gatewayv1alpha2.TCPRoute{},
 			Mutator: status.MutatorFunc(func(obj client.Object) client.Object {
 				cp := obj.(*gatewayv1alpha2.TCPRoute).DeepCopy()
+				condition.ObservedGeneration = cp.GetGeneration()
 				gatewayNs := cp.GetNamespace()
 				for i, ref := range cp.Status.Parents {
 					ns := gatewayNs
@@ -228,6 +231,7 @@ func (d *apisixProvider) updateStatus(nnk types.NamespacedNameKind, condition me
 			Resource:       &gatewayv1.GRPCRoute{},
 			Mutator: status.MutatorFunc(func(obj client.Object) client.Object {
 				cp := obj.(*gatewayv1.GRPCRoute).DeepCopy()
+				condition.ObservedGeneration = cp.GetGeneration()
 				gatewayNs := cp.GetNamespace()
 				for i, ref := range cp.Status.Parents {
 					ns := gatewayNs
diff --git a/test/e2e/gatewayapi/status.go b/test/e2e/gatewayapi/status.go
index 3c50499f..999ec31c 100644
--- a/test/e2e/gatewayapi/status.go
+++ b/test/e2e/gatewayapi/status.go
@@ -173,6 +173,7 @@ spec:
 					And(
 						ContainSubstring(`status: "True"`),
 						ContainSubstring(`reason: Accepted`),
+						ContainSubstring(`observedGeneration: 1`),
 					),
 				)