diff --git a/api/v1/helmchart_types.go b/api/v1/helmchart_types.go
index 23cb24146..224d8533d 100644
--- a/api/v1/helmchart_types.go
+++ b/api/v1/helmchart_types.go
@@ -28,6 +28,7 @@ import (
 const HelmChartKind = "HelmChart"
 
 // HelmChartSpec specifies the desired state of a Helm chart.
+// +kubebuilder:validation:XValidation:rule="!has(self.verify) || self.sourceRef.kind == 'HelmRepository'",message="spec.verify is only supported when spec.sourceRef.kind is 'HelmRepository'"
 type HelmChartSpec struct {
 	// Chart is the name or path the Helm chart is available at in the
 	// SourceRef.
diff --git a/config/crd/bases/source.toolkit.fluxcd.io_helmcharts.yaml b/config/crd/bases/source.toolkit.fluxcd.io_helmcharts.yaml
index 0e57c72a5..50237f713 100644
--- a/config/crd/bases/source.toolkit.fluxcd.io_helmcharts.yaml
+++ b/config/crd/bases/source.toolkit.fluxcd.io_helmcharts.yaml
@@ -198,6 +198,9 @@ spec:
             - interval
             - sourceRef
             type: object
+            x-kubernetes-validations:
+            - message: spec.verify is only supported when spec.sourceRef.kind is 'HelmRepository'
+              rule: '!has(self.verify) || self.sourceRef.kind == ''HelmRepository'''
           status:
             default:
               observedGeneration: -1