diff --git a/api/server/router/container/exec.go b/api/server/router/container/exec.go
index f840e54d70..8d49de7dac 100644
--- a/api/server/router/container/exec.go
+++ b/api/server/router/container/exec.go
@@ -49,7 +49,7 @@ func (s *containerRouter) postContainerExecCreate(ctx context.Context, w http.Re
 		return err
 	}
 
-	return httputils.WriteJSON(w, http.StatusCreated, &types.ContainerExecCreateResponse{
+	return httputils.WriteJSON(w, http.StatusCreated, &types.IDResponse{
 		ID: id,
 	})
 }
diff --git a/api/swagger.yaml b/api/swagger.yaml
index 9d106b9dbf..d624790eee 100644
--- a/api/swagger.yaml
+++ b/api/swagger.yaml
@@ -1075,6 +1075,16 @@ definitions:
     example:
       message: "Something went wrong."
 
+  IdResponse:
+    description: "Response to an API call that returns just an Id"
+    type: "object"
+    required: ["Id"]
+    properties:
+      Id:
+        description: "The id of the newly created object."
+        type: "string"
+        x-nullable: false
+
   EndpointSettings:
     description: "Configuration for a network endpoint."
     type: "object"
@@ -5194,19 +5204,7 @@ paths:
         201:
           description: "no error"
           schema:
-            type: "object"
-            properties:
-              Id:
-                description: "The ID of the exec instance created."
-                type: "string"
-              Warnings:
-                type: "array"
-                items:
-                  type: "string"
-          examples:
-            application/json:
-              Id: "f90e34656806"
-              Warnings: []
+            $ref: "#/definitions/IdResponse"
         404:
           description: "no such container"
           schema:
diff --git a/api/types/id_response.go b/api/types/id_response.go
new file mode 100644
index 0000000000..7592d2f8b1
--- /dev/null
+++ b/api/types/id_response.go
@@ -0,0 +1,13 @@
+package types
+
+// This file was generated by the swagger tool.
+// Editing this file might prove futile when you re-run the swagger generate command
+
+// IDResponse Response to an API call that returns just an Id
+// swagger:model IdResponse
+type IDResponse struct {
+
+	// The id of the newly created object.
+	// Required: true
+	ID string `json:"Id"`
+}
diff --git a/api/types/types.go b/api/types/types.go
index e06dcc853b..33c4f26a62 100644
--- a/api/types/types.go
+++ b/api/types/types.go
@@ -13,13 +13,6 @@ import (
 	"github.com/docker/go-connections/nat"
 )
 
-// ContainerExecCreateResponse contains response of Remote API:
-// POST "/containers/{name:.*}/exec"
-type ContainerExecCreateResponse struct {
-	// ID is the exec ID.
-	ID string `json:"Id"`
-}
-
 // ContainerUpdateResponse contains response of Remote API:
 // POST "/containers/{name:.*}/update"
 type ContainerUpdateResponse struct {
diff --git a/client/container_exec.go b/client/container_exec.go
index 34173d3194..f6df722918 100644
--- a/client/container_exec.go
+++ b/client/container_exec.go
@@ -8,8 +8,8 @@ import (
 )
 
 // ContainerExecCreate creates a new exec configuration to run an exec process.
-func (cli *Client) ContainerExecCreate(ctx context.Context, container string, config types.ExecConfig) (types.ContainerExecCreateResponse, error) {
-	var response types.ContainerExecCreateResponse
+func (cli *Client) ContainerExecCreate(ctx context.Context, container string, config types.ExecConfig) (types.IDResponse, error) {
+	var response types.IDResponse
 	resp, err := cli.post(ctx, "/containers/"+container+"/exec", nil, config, nil)
 	if err != nil {
 		return response, err
diff --git a/client/container_exec_test.go b/client/container_exec_test.go
index 42146ae8a5..0e296a50ad 100644
--- a/client/container_exec_test.go
+++ b/client/container_exec_test.go
@@ -45,7 +45,7 @@ func TestContainerExecCreate(t *testing.T) {
 			if execConfig.User != "user" {
 				return nil, fmt.Errorf("expected an execConfig with User == 'user', got %v", execConfig)
 			}
-			b, err := json.Marshal(types.ContainerExecCreateResponse{
+			b, err := json.Marshal(types.IDResponse{
 				ID: "exec_id",
 			})
 			if err != nil {
diff --git a/client/interface.go b/client/interface.go
index 8f8bbaf55f..0575ce5c3b 100644
--- a/client/interface.go
+++ b/client/interface.go
@@ -37,7 +37,7 @@ type ContainerAPIClient interface {
 	ContainerCreate(ctx context.Context, config *container.Config, hostConfig *container.HostConfig, networkingConfig *network.NetworkingConfig, containerName string) (container.ContainerCreateCreatedBody, error)
 	ContainerDiff(ctx context.Context, container string) ([]types.ContainerChange, error)
 	ContainerExecAttach(ctx context.Context, execID string, config types.ExecConfig) (types.HijackedResponse, error)
-	ContainerExecCreate(ctx context.Context, container string, config types.ExecConfig) (types.ContainerExecCreateResponse, error)
+	ContainerExecCreate(ctx context.Context, container string, config types.ExecConfig) (types.IDResponse, error)
 	ContainerExecInspect(ctx context.Context, execID string) (types.ContainerExecInspect, error)
 	ContainerExecResize(ctx context.Context, execID string, options types.ResizeOptions) error
 	ContainerExecStart(ctx context.Context, execID string, config types.ExecStartCheck) error
diff --git a/hack/generate-swagger-api.sh b/hack/generate-swagger-api.sh
index a5c02b10bc..13977dbb8c 100755
--- a/hack/generate-swagger-api.sh
+++ b/hack/generate-swagger-api.sh
@@ -7,7 +7,8 @@ swagger generate model -f api/swagger.yaml \
     -n Port \
     -n ImageSummary \
     -n Plugin -n PluginDevice -n PluginMount -n PluginEnv -n PluginInterfaceType \
-    -n ErrorResponse
+    -n ErrorResponse \
+    -n IdResponse
 
 swagger generate operation -f api/swagger.yaml \
     -t api -a types -m types -C api/swagger-gen.yaml \