diff --git a/src/SOL005/NSLifecycleManagement/definitions/SOL005NSLifecycleManagement_def.yaml b/src/SOL005/NSLifecycleManagement/definitions/SOL005NSLifecycleManagement_def.yaml
index 3b14cb54b083c163738c321a06d6622cd5c586f4..6019672121c3396b23a548ad498eb3191bcd7c65 100644
--- a/src/SOL005/NSLifecycleManagement/definitions/SOL005NSLifecycleManagement_def.yaml
+++ b/src/SOL005/NSLifecycleManagement/definitions/SOL005NSLifecycleManagement_def.yaml
@@ -1385,6 +1385,26 @@ definitions:
         items:
           $ref: "#/definitions/AffinityOrAntiAffinityRule"
 
+  ParamsForNestedNs:
+    description: >
+      This type specifies additional parameters on a per-nested NS instance basis. 
+      It shall comply with the provisions defined in Table 6.5.3.21a-1.
+    type: object
+    required:
+      - nsProfileId
+    properties:
+      nsProfileId:
+        description: >
+          Identifier of a NsProfile to which the additional parameters apply.
+        $ref: "SOL005_def.yaml#/definitions/IdentifierInNsd" 
+      additionalParam:
+        description: >
+          Additional parameters that are to be applied on a per nested NS instance.
+        type: array
+        items:
+          $ref: "SOL005_def.yaml#/definitions/KeyValuePairs"
+
+
   ParamsForVnf:
     description: >
       This type defines the additional parameters for the VNF instance