diff --git a/pkg/properties/normalized.go b/pkg/properties/normalized.go
index 911d416..ea4a7b8 100644
--- a/pkg/properties/normalized.go
+++ b/pkg/properties/normalized.go
@@ -158,6 +158,7 @@ type SpecParam struct {
 	Name                    *NameVariant
 	Description             string                            `json:"description" yaml:"description"`
 	TerraformProviderConfig *SpecParamTerraformProviderConfig `json:"terraform_provider_config" yaml:"terraform_provider_config"`
+	IsNil                   bool                              `json:"-" yaml:"-"`
 	Type                    string                            `json:"type" yaml:"type"`
 	Default                 string                            `json:"default" yaml:"default"`
 	Required                bool                              `json:"required" yaml:"required"`
@@ -346,6 +347,7 @@ func schemaParameterToSpecParameter(schemaSpec *parameter.Parameter) (*SpecParam
 
 	var defaultVal string
 
+	var paramTypeIsNil bool
 	var innerSpec *Spec
 	var itemsSpec SpecParamItems
 
@@ -408,7 +410,8 @@ func schemaParameterToSpecParameter(schemaSpec *parameter.Parameter) (*SpecParam
 	case *parameter.EnumSpec:
 		defaultVal = spec.Default
 	case *parameter.NilSpec:
-		specType = "string"
+		paramTypeIsNil = true
+		specType = ""
 	case *parameter.SimpleSpec:
 		if typed, ok := spec.Default.(string); ok {
 			defaultVal = typed
@@ -453,6 +456,7 @@ func schemaParameterToSpecParameter(schemaSpec *parameter.Parameter) (*SpecParam
 	specParameter := &SpecParam{
 		Description:             schemaSpec.Description,
 		Type:                    specType,
+		IsNil:                   paramTypeIsNil,
 		Default:                 defaultVal,
 		Required:                schemaSpec.Required,
 		Sensitive:               sensitive,
diff --git a/pkg/translate/terraform_provider/funcs.go b/pkg/translate/terraform_provider/funcs.go
index 6213e01..6d7b5a5 100644
--- a/pkg/translate/terraform_provider/funcs.go
+++ b/pkg/translate/terraform_provider/funcs.go
@@ -957,11 +957,17 @@ func createSchemaSpecForParameter(schemaTyp schemaType, manager *imports.Manager
 		})
 	}
 
+	validatorFn := "ExactlyOneOf"
 	var expressions []string
 	for _, elt := range param.Spec.OneOf {
 		if elt.IsPrivateParameter() {
 			continue
 		}
+
+		if elt.IsNil {
+			validatorFn = "ConflictsWith"
+		}
+
 		expressions = append(expressions, fmt.Sprintf(`path.MatchRelative().AtParent().AtName("%s")`, elt.Name.Underscore))
 	}
 
@@ -973,7 +979,7 @@ func createSchemaSpecForParameter(schemaTyp schemaType, manager *imports.Manager
 	}
 
 	functions := []validatorFunctionCtx{{
-		Function:    "ExactlyOneOf",
+		Function:    validatorFn,
 		Expressions: expressions,
 	}}
 
@@ -1418,16 +1424,21 @@ func createSchemaSpecForNormalization(resourceTyp properties.ResourceType, schem
 		schemas = append(schemas, createSchemaSpecForParameter(schemaTyp, manager, structName, packageName, elt, nil)...)
 	}
 
+	validatorFn := "ExactlyOneOf"
 	var expressions []string
 	for _, elt := range spec.Spec.OneOf {
 		if elt.IsPrivateParameter() {
 			continue
 		}
+
+		if elt.IsNil {
+			validatorFn = "ConflictsWith"
+		}
 		expressions = append(expressions, fmt.Sprintf(`path.MatchRelative().AtParent().AtName("%s")`, elt.Name.Underscore))
 	}
 
 	functions := []validatorFunctionCtx{{
-		Function:    "ExactlyOneOf",
+		Function:    validatorFn,
 		Expressions: expressions,
 	}}
 
diff --git a/specs/policies/network-address-translation.yaml b/specs/policies/network-address-translation.yaml
index 02af4d6..ee085bd 100644
--- a/specs/policies/network-address-translation.yaml
+++ b/specs/policies/network-address-translation.yaml
@@ -344,10 +344,36 @@ spec:
       type: list
       profiles:
         - type: member
-          xpath: [tags]
+          xpath: [tag]
       spec:
         items:
           type: string
+    - name: target
+      type: object
+      profiles:
+        - xpath: [target]
+      spec:
+        params:
+          - name: devices
+            type: list
+            profiles:
+              - type: entry
+                xpath: [devices]
+            spec:
+              items:
+                type: string
+          - name: tags
+            type: list
+            profiles:
+              - type: member
+                xpath: [tags]
+            spec:
+              items:
+                type: string
+          - name: negate
+            type: bool
+            profiles:
+              - xpath: [negate]
     - name: disabled
       type: bool
       profiles:
@@ -372,6 +398,10 @@ spec:
           spec:
             max: 127
   variants:
+    - name: none
+      type: nil
+      profiles:
+        - xpath: []
     - name: destination-translation
       type: object
       profiles: