diff --git a/modules/storage/storage.go b/modules/storage/storage.go
index 641706b56..71212474b 100644
--- a/modules/storage/storage.go
+++ b/modules/storage/storage.go
@@ -102,7 +102,7 @@ type Volume struct {
 	Name string `json:"name"`
 	// +kubebuilder:validation:Required
 	// VolumeSource defines the source of a volume to be mounted
-	VolumeSource VolumeSource `json:"volumeSource"`
+	VolumeSource VolumeSource `json:",inline" protobuf:"bytes,2,opt,name=volumeSource"`
 }
 
 // VolMounts is the data structure used to expose Volumes and Mounts that can