diff --git a/openapi-internal.yaml b/openapi-internal.yaml
index 86d3d29..2b3d45e 100644
--- a/openapi-internal.yaml
+++ b/openapi-internal.yaml
@@ -32,6 +32,11 @@ paths:
         - Submissions
       parameters:
         - $ref: '#/components/parameters/SubmissionID'
+        - name: TargetAssetID
+          in: query
+          schema:
+            type: integer
+            format: int64
       responses:
         "204":
           description: Successful response
diff --git a/pkg/internal/oas_client_gen.go b/pkg/internal/oas_client_gen.go
index ee2c470..50ffab4 100644
--- a/pkg/internal/oas_client_gen.go
+++ b/pkg/internal/oas_client_gen.go
@@ -255,6 +255,27 @@ func (c *Client) sendActionSubmissionUploaded(ctx context.Context, params Action
 	pathParts[2] = "/status/validator-uploaded"
 	uri.AddPathParts(u, pathParts[:]...)
 
+	stage = "EncodeQueryParams"
+	q := uri.NewQueryEncoder()
+	{
+		// Encode "TargetAssetID" parameter.
+		cfg := uri.QueryParameterEncodingConfig{
+			Name:    "TargetAssetID",
+			Style:   uri.QueryStyleForm,
+			Explode: true,
+		}
+
+		if err := q.EncodeParam(cfg, func(e uri.Encoder) error {
+			if val, ok := params.TargetAssetID.Get(); ok {
+				return e.EncodeValue(conv.Int64ToString(val))
+			}
+			return nil
+		}); err != nil {
+			return res, errors.Wrap(err, "encode query")
+		}
+	}
+	u.RawQuery = q.Values().Encode()
+
 	stage = "EncodeRequest"
 	r, err := ht.NewRequest(ctx, "POST", u)
 	if err != nil {
diff --git a/pkg/internal/oas_handlers_gen.go b/pkg/internal/oas_handlers_gen.go
index 514fb6c..375a08d 100644
--- a/pkg/internal/oas_handlers_gen.go
+++ b/pkg/internal/oas_handlers_gen.go
@@ -277,6 +277,10 @@ func (s *Server) handleActionSubmissionUploadedRequest(args [1]string, argsEscap
 					Name: "SubmissionID",
 					In:   "path",
 				}: params.SubmissionID,
+				{
+					Name: "TargetAssetID",
+					In:   "query",
+				}: params.TargetAssetID,
 			},
 			Raw: r,
 		}
diff --git a/pkg/internal/oas_parameters_gen.go b/pkg/internal/oas_parameters_gen.go
index 52a65ca..b3aa388 100644
--- a/pkg/internal/oas_parameters_gen.go
+++ b/pkg/internal/oas_parameters_gen.go
@@ -84,7 +84,8 @@ func decodeActionSubmissionReleasedParams(args [1]string, argsEscaped bool, r *h
 // ActionSubmissionUploadedParams is parameters of actionSubmissionUploaded operation.
 type ActionSubmissionUploadedParams struct {
 	// The unique identifier for a submission.
-	SubmissionID int64
+	SubmissionID  int64
+	TargetAssetID OptInt64
 }
 
 func unpackActionSubmissionUploadedParams(packed middleware.Parameters) (params ActionSubmissionUploadedParams) {
@@ -95,10 +96,20 @@ func unpackActionSubmissionUploadedParams(packed middleware.Parameters) (params
 		}
 		params.SubmissionID = packed[key].(int64)
 	}
+	{
+		key := middleware.ParameterKey{
+			Name: "TargetAssetID",
+			In:   "query",
+		}
+		if v, ok := packed[key]; ok {
+			params.TargetAssetID = v.(OptInt64)
+		}
+	}
 	return params
 }
 
 func decodeActionSubmissionUploadedParams(args [1]string, argsEscaped bool, r *http.Request) (params ActionSubmissionUploadedParams, _ error) {
+	q := uri.NewQueryDecoder(r.URL.Query())
 	// Decode path: SubmissionID.
 	if err := func() error {
 		param := args[0]
@@ -144,6 +155,47 @@ func decodeActionSubmissionUploadedParams(args [1]string, argsEscaped bool, r *h
 			Err:  err,
 		}
 	}
+	// Decode query: TargetAssetID.
+	if err := func() error {
+		cfg := uri.QueryParameterDecodingConfig{
+			Name:    "TargetAssetID",
+			Style:   uri.QueryStyleForm,
+			Explode: true,
+		}
+
+		if err := q.HasParam(cfg); err == nil {
+			if err := q.DecodeParam(cfg, func(d uri.Decoder) error {
+				var paramsDotTargetAssetIDVal int64
+				if err := func() error {
+					val, err := d.DecodeValue()
+					if err != nil {
+						return err
+					}
+
+					c, err := conv.ToInt64(val)
+					if err != nil {
+						return err
+					}
+
+					paramsDotTargetAssetIDVal = c
+					return nil
+				}(); err != nil {
+					return err
+				}
+				params.TargetAssetID.SetTo(paramsDotTargetAssetIDVal)
+				return nil
+			}); err != nil {
+				return err
+			}
+		}
+		return nil
+	}(); err != nil {
+		return params, &ogenerrors.DecodeParamError{
+			Name: "TargetAssetID",
+			In:   "query",
+			Err:  err,
+		}
+	}
 	return params, nil
 }
 
diff --git a/pkg/internal/oas_schemas_gen.go b/pkg/internal/oas_schemas_gen.go
index e17044b..319dfb2 100644
--- a/pkg/internal/oas_schemas_gen.go
+++ b/pkg/internal/oas_schemas_gen.go
@@ -71,3 +71,49 @@ func (s *ErrorStatusCode) SetStatusCode(val int) {
 func (s *ErrorStatusCode) SetResponse(val Error) {
 	s.Response = val
 }
+
+// NewOptInt64 returns new OptInt64 with value set to v.
+func NewOptInt64(v int64) OptInt64 {
+	return OptInt64{
+		Value: v,
+		Set:   true,
+	}
+}
+
+// OptInt64 is optional int64.
+type OptInt64 struct {
+	Value int64
+	Set   bool
+}
+
+// IsSet returns true if OptInt64 was set.
+func (o OptInt64) IsSet() bool { return o.Set }
+
+// Reset unsets value.
+func (o *OptInt64) Reset() {
+	var v int64
+	o.Value = v
+	o.Set = false
+}
+
+// SetTo sets value to v.
+func (o *OptInt64) SetTo(v int64) {
+	o.Set = true
+	o.Value = v
+}
+
+// Get returns value and boolean that denotes whether value was set.
+func (o OptInt64) Get() (v int64, ok bool) {
+	if !o.Set {
+		return v, false
+	}
+	return o.Value, true
+}
+
+// Or returns value if set, or given parameter if does not.
+func (o OptInt64) Or(d int64) int64 {
+	if v, ok := o.Get(); ok {
+		return v
+	}
+	return d
+}