diff --git a/operator/v1/0000_50_ingress-operator_00-ingresscontroller.crd.yaml b/operator/v1/0000_50_ingress-operator_00-ingresscontroller.crd.yaml
index 0ac4a02d1b0..0e354020c07 100644
--- a/operator/v1/0000_50_ingress-operator_00-ingresscontroller.crd.yaml
+++ b/operator/v1/0000_50_ingress-operator_00-ingresscontroller.crd.yaml
@@ -1229,7 +1229,7 @@ spec:
                       value is 5s. \n Currently the minimum allowed value is 1s and
                       the maximum allowed value is 2147483647ms (24.85 days).  Both
                       are subject to change over time."
-                    pattern: ^0|([0-9]+(\.[0-9]+)?(ns|us|µs|μs|ms|s|m|h))+$
+                    pattern: ^(0|([0-9]+(\.[0-9]+)?(ns|us|µs|μs|ms|s|m|h))+)$
                     type: string
                   maxConnections:
                     description: "maxConnections defines the maximum number of simultaneous
diff --git a/operator/v1/types_ingress.go b/operator/v1/types_ingress.go
index 6e296846585..a716254669b 100644
--- a/operator/v1/types_ingress.go
+++ b/operator/v1/types_ingress.go
@@ -1404,7 +1404,7 @@ type IngressControllerTuningOptions struct {
 	// 2147483647ms (24.85 days).  Both are subject to change over time.
 	//
 	// +kubebuilder:validation:Optional
-	// +kubebuilder:validation:Pattern=^0|([0-9]+(\.[0-9]+)?(ns|us|µs|μs|ms|s|m|h))+$
+	// +kubebuilder:validation:Pattern=^(0|([0-9]+(\.[0-9]+)?(ns|us|µs|μs|ms|s|m|h))+)$
 	// +kubebuilder:validation:Type:=string
 	// +optional
 	HealthCheckInterval *metav1.Duration `json:"healthCheckInterval,omitempty"`