diff --git a/client/karbon/karbon_private_registry_structs.go b/client/karbon/karbon_private_registry_structs.go
index 5e588bea7..59b85c81a 100644
--- a/client/karbon/karbon_private_registry_structs.go
+++ b/client/karbon/karbon_private_registry_structs.go
@@ -3,24 +3,24 @@ package karbon
 type PrivateRegistryListResponse []PrivateRegistryResponse
 
 type PrivateRegistryResponse struct {
-	Name     *string `json:"name" mapstructure:"name, omitempty"`
-	Endpoint *string `json:"endpoint" mapstructure:"endpoint, omitempty"`
-	UUID     *string `json:"uuid" mapstructure:"uuid, omitempty"`
+	Name     *string `json:"name" mapstructure:"name,omitempty"`
+	Endpoint *string `json:"endpoint" mapstructure:"endpoint,omitempty"`
+	UUID     *string `json:"uuid" mapstructure:"uuid,omitempty"`
 }
 
 type PrivateRegistryIntentInput struct {
-	Name     *string `json:"name" mapstructure:"name, omitempty"`
-	Cert     *string `json:"cert" mapstructure:"cert, omitempty"`
-	URL      *string `json:"url" mapstructure:"url, omitempty"`
-	Port     *int64  `json:"port" mapstructure:"port, omitempty"`
-	Username *string `json:"username" mapstructure:"username, omitempty"`
-	Password *string `json:"password" mapstructure:"password, omitempty"`
+	Name     *string `json:"name" mapstructure:"name,omitempty"`
+	Cert     *string `json:"cert" mapstructure:"cert,omitempty"`
+	URL      *string `json:"url" mapstructure:"url,omitempty"`
+	Port     *int64  `json:"port,omitempty" mapstructure:"port,omitempty"`
+	Username *string `json:"username,omitempty" mapstructure:"username,omitempty"`
+	Password *string `json:"password,omitempty" mapstructure:"password,omitempty"`
 }
 
 type PrivateRegistryOperationResponse struct {
-	RegistryName *string `json:"registry_name" mapstructure:"registry_name, omitempty"`
+	RegistryName *string `json:"registry_name" mapstructure:"registry_name,omitempty"`
 }
 
 type PrivateRegistryOperationIntentInput struct {
-	RegistryName *string `json:"registry_name" mapstructure:"registry_name, omitempty"`
+	RegistryName *string `json:"registry_name" mapstructure:"registry_name,omitempty"`
 }
diff --git a/nutanix/resource_nutanix_karbon_private_registry.go b/nutanix/resource_nutanix_karbon_private_registry.go
index 7cb8b4ed5..87c6d573c 100644
--- a/nutanix/resource_nutanix_karbon_private_registry.go
+++ b/nutanix/resource_nutanix_karbon_private_registry.go
@@ -46,7 +46,7 @@ func KarbonPrivateRegistryResourceMap() map[string]*schema.Schema {
 		},
 		"port": {
 			Type:         schema.TypeInt,
-			Required:     true,
+			Optional:     true,
 			ValidateFunc: validation.IntAtLeast(1),
 		},
 		"endpoint": {
@@ -87,7 +87,7 @@ func resourceNutanixKarbonPrivateRegistryCreate(ctx context.Context, d *schema.R
 	} else {
 		return diag.Errorf("error occurred during private registry creation: url must be set")
 	}
-	if port, ok := d.GetOk("port"); ok {
+	if port, ok := d.GetOk("port"); ok && port.(int) > 0 {
 		p := int64(port.(int))
 		karbonPrivateRegistry.Port = &p
 	}