diff --git a/test/images/agnhost/webhook/configmap.go b/test/images/agnhost/webhook/configmap.go
index 85fbb1db63f..3ccdf4e27e3 100644
--- a/test/images/agnhost/webhook/configmap.go
+++ b/test/images/agnhost/webhook/configmap.go
@@ -97,8 +97,10 @@ func mutateConfigmaps(ar v1.AdmissionReview) *v1.AdmissionResponse {
 		reviewResponse.Patch = []byte(configMapPatch2)
 	}
 
-	pt := v1.PatchTypeJSONPatch
-	reviewResponse.PatchType = &pt
+	if len(reviewResponse.Patch) != 0 {
+		pt := v1.PatchTypeJSONPatch
+		reviewResponse.PatchType = &pt
+	}
 
 	return &reviewResponse
 }
diff --git a/test/images/agnhost/webhook/customresource.go b/test/images/agnhost/webhook/customresource.go
index a1452d6454e..50289e09915 100644
--- a/test/images/agnhost/webhook/customresource.go
+++ b/test/images/agnhost/webhook/customresource.go
@@ -56,8 +56,10 @@ func mutateCustomResource(ar v1.AdmissionReview) *v1.AdmissionResponse {
 	if cr.Data["mutation-stage-1"] == "yes" {
 		reviewResponse.Patch = []byte(customResourcePatch2)
 	}
-	pt := v1.PatchTypeJSONPatch
-	reviewResponse.PatchType = &pt
+	if len(reviewResponse.Patch) != 0 {
+		pt := v1.PatchTypeJSONPatch
+		reviewResponse.PatchType = &pt
+	}
 	return &reviewResponse
 }