diff --git a/charts/kyverno/crds/crds.yaml b/charts/kyverno/crds/crds.yaml
index 4b03876355..a23d37a7f3 100644
--- a/charts/kyverno/crds/crds.yaml
+++ b/charts/kyverno/crds/crds.yaml
@@ -240,7 +240,7 @@ spec:
                             type: string
                           type: array
                         resources:
-                          description: ResourceDescription contains information about the resource being created or modified.
+                          description: ResourceDescription contains information about the resource being created or modified. Requires at least one tag to be specified when under MatchResources.
                           properties:
                             annotations:
                               additionalProperties:
@@ -1384,7 +1384,7 @@ spec:
                             type: string
                           type: array
                         resources:
-                          description: ResourceDescription contains information about the resource being created or modified.
+                          description: ResourceDescription contains information about the resource being created or modified. Requires at least one tag to be specified when under MatchResources.
                           properties:
                             annotations:
                               additionalProperties:
diff --git a/definitions/crds/kyverno.io_clusterpolicies.yaml b/definitions/crds/kyverno.io_clusterpolicies.yaml
index 8be68c17d6..457ad206be 100644
--- a/definitions/crds/kyverno.io_clusterpolicies.yaml
+++ b/definitions/crds/kyverno.io_clusterpolicies.yaml
@@ -360,7 +360,8 @@ spec:
                           type: array
                         resources:
                           description: ResourceDescription contains information about
-                            the resource being created or modified.
+                            the resource being created or modified. Requires at least
+                            one tag to be specified when under MatchResources.
                           properties:
                             annotations:
                               additionalProperties:
diff --git a/definitions/crds/kyverno.io_policies.yaml b/definitions/crds/kyverno.io_policies.yaml
index 92a725e27d..82bdcd892c 100644
--- a/definitions/crds/kyverno.io_policies.yaml
+++ b/definitions/crds/kyverno.io_policies.yaml
@@ -361,7 +361,8 @@ spec:
                           type: array
                         resources:
                           description: ResourceDescription contains information about
-                            the resource being created or modified.
+                            the resource being created or modified. Requires at least
+                            one tag to be specified when under MatchResources.
                           properties:
                             annotations:
                               additionalProperties:
diff --git a/definitions/install.yaml b/definitions/install.yaml
index 06c5ab1f84..10c7bcd79b 100644
--- a/definitions/install.yaml
+++ b/definitions/install.yaml
@@ -245,7 +245,7 @@ spec:
                             type: string
                           type: array
                         resources:
-                          description: ResourceDescription contains information about the resource being created or modified.
+                          description: ResourceDescription contains information about the resource being created or modified. Requires at least one tag to be specified when under MatchResources.
                           properties:
                             annotations:
                               additionalProperties:
@@ -1389,7 +1389,7 @@ spec:
                             type: string
                           type: array
                         resources:
-                          description: ResourceDescription contains information about the resource being created or modified.
+                          description: ResourceDescription contains information about the resource being created or modified. Requires at least one tag to be specified when under MatchResources.
                           properties:
                             annotations:
                               additionalProperties:
diff --git a/definitions/install_debug.yaml b/definitions/install_debug.yaml
index acaf93f692..8a704430ff 100755
--- a/definitions/install_debug.yaml
+++ b/definitions/install_debug.yaml
@@ -245,7 +245,7 @@ spec:
                             type: string
                           type: array
                         resources:
-                          description: ResourceDescription contains information about the resource being created or modified.
+                          description: ResourceDescription contains information about the resource being created or modified. Requires at least one tag to be specified when under MatchResources.
                           properties:
                             annotations:
                               additionalProperties:
@@ -1389,7 +1389,7 @@ spec:
                             type: string
                           type: array
                         resources:
-                          description: ResourceDescription contains information about the resource being created or modified.
+                          description: ResourceDescription contains information about the resource being created or modified. Requires at least one tag to be specified when under MatchResources.
                           properties:
                             annotations:
                               additionalProperties:
diff --git a/pkg/api/kyverno/v1/policy_types.go b/pkg/api/kyverno/v1/policy_types.go
index 6cc297c77f..80ba6eb926 100755
--- a/pkg/api/kyverno/v1/policy_types.go
+++ b/pkg/api/kyverno/v1/policy_types.go
@@ -221,6 +221,7 @@ type MatchResources struct {
 	UserInfo `json:",omitempty" yaml:",omitempty"`
 
 	// ResourceDescription contains information about the resource being created or modified.
+	// Requires at least one tag to be specified when under MatchResources.
 	ResourceDescription `json:"resources,omitempty" yaml:"resources,omitempty"`
 }