diff --git a/pkg/vpa/service.go b/pkg/vpa/service.go
index 8a6aaada..b5cb7067 100644
--- a/pkg/vpa/service.go
+++ b/pkg/vpa/service.go
@@ -166,7 +166,7 @@ func isMonitorVPAReady(vpa *v1.VerticalPodAutoscaler, tortoise *autoscalingv1bet
 		}
 	}
 
-	return containerInTortoise.Equal(containerInVPA)
+	return containerInVPA.IsSuperset(containerInTortoise)
 }
 
 func SetAllVerticalContainerResourcePhaseWorking(tortoise *autoscalingv1beta3.Tortoise, now time.Time) *autoscalingv1beta3.Tortoise {
diff --git a/pkg/vpa/service_test.go b/pkg/vpa/service_test.go
index 36904a1b..5ef9e561 100644
--- a/pkg/vpa/service_test.go
+++ b/pkg/vpa/service_test.go
@@ -628,6 +628,48 @@ func Test_isMonitorVPAReady(t *testing.T) {
 				},
 			},
 		},
+		{
+			name: "Tortoise defines less containers than VPA, VPA is Ready",
+			args: args{
+				vpa: &vpav1.VerticalPodAutoscaler{
+					Status: vpav1.VerticalPodAutoscalerStatus{
+						Conditions: []vpav1.VerticalPodAutoscalerCondition{
+							{
+								Type:   vpav1.RecommendationProvided,
+								Status: v1.ConditionFalse,
+							},
+						},
+						Recommendation: &vpav1.RecommendedPodResources{
+							ContainerRecommendations: []vpav1.RecommendedContainerResources{
+								{
+									ContainerName: "app",
+									Target: v1.ResourceList{
+										v1.ResourceMemory: resource.MustParse("1Gi"),
+										v1.ResourceCPU:    resource.MustParse("1"), // wrong
+									},
+								},
+								{
+									ContainerName: "istio",
+									Target: v1.ResourceList{
+										v1.ResourceMemory: resource.MustParse("1Gi"),
+										v1.ResourceCPU:    resource.MustParse("1"),
+									},
+								},
+							},
+						},
+					},
+				},
+				tortoise: &autoscalingv1beta3.Tortoise{
+					Status: autoscalingv1beta3.TortoiseStatus{
+						AutoscalingPolicy: []autoscalingv1beta3.ContainerAutoscalingPolicy{
+							{
+								ContainerName: "app",
+							},
+						},
+					},
+				},
+			},
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {