diff --git a/client/client_mock_test.go b/client/client_mock_test.go
index 72f1139015..0f1129917b 100644
--- a/client/client_mock_test.go
+++ b/client/client_mock_test.go
@@ -5,9 +5,11 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"strconv"
 	"strings"
 
 	"github.com/moby/moby/api/types/common"
+	"github.com/moby/moby/api/types/swarm"
 )
 
 // defaultAPIPath is the API path prefix for the default API version used.
@@ -84,6 +86,27 @@ func mockJSONResponse[T any](statusCode int, headers http.Header, resp T) func(r
 	return mockResponse(statusCode, hdr, string(respBody))
 }
 
+// mockPingResponse mocks the headers set for a "/_ping" response.
+func mockPingResponse(statusCode int, ping PingResult) func(req *http.Request) (*http.Response, error) {
+	headers := http.Header{}
+	if s := ping.SwarmStatus; s != nil {
+		role := "worker"
+		if s.ControlAvailable {
+			role = "manager"
+		}
+		headers.Set("Swarm", fmt.Sprintf("%s/%s", string(swarm.LocalNodeStateActive), role))
+	}
+	headers.Set("Api-Version", ping.APIVersion)
+	headers.Set("Ostype", ping.OSType)
+	headers.Set("Docker-Experimental", strconv.FormatBool(ping.Experimental))
+	headers.Set("Builder-Version", string(ping.BuilderVersion))
+
+	headers.Set("Content-Type", "text/plain; charset=utf-8")
+	headers.Set("Cache-Control", "no-cache, no-store, must-revalidate")
+	headers.Set("Pragma", "no-cache")
+	return mockResponse(statusCode, headers, "OK")
+}
+
 func mockResponse(statusCode int, headers http.Header, respBody string) func(req *http.Request) (*http.Response, error) {
 	return func(req *http.Request) (*http.Response, error) {
 		var body io.ReadCloser
diff --git a/client/client_test.go b/client/client_test.go
index c8bf9eae6f..2e6326c89b 100644
--- a/client/client_test.go
+++ b/client/client_test.go
@@ -258,7 +258,7 @@ func TestNegotiateAPIVersionEmpty(t *testing.T) {
 
 	client, err := New(FromEnv,
 		WithAPIVersionNegotiation(),
-		WithMockClient(mockResponse(http.StatusOK, http.Header{"Api-Version": []string{expected}}, "OK")),
+		WithMockClient(mockPingResponse(http.StatusOK, PingResult{APIVersion: expected})),
 	)
 	assert.NilError(t, err)
 
@@ -331,7 +331,7 @@ func TestNegotiateAPIVersion(t *testing.T) {
 			opts := []Opt{
 				FromEnv,
 				WithAPIVersionNegotiation(),
-				WithMockClient(mockResponse(http.StatusOK, http.Header{"Api-Version": []string{tc.pingVersion}}, "OK")),
+				WithMockClient(mockPingResponse(http.StatusOK, PingResult{APIVersion: tc.pingVersion})),
 			}
 
 			if tc.clientVersion != "" {
@@ -363,7 +363,7 @@ func TestNegotiateAPIVersionOverride(t *testing.T) {
 
 	client, err := New(
 		FromEnv,
-		WithMockClient(mockResponse(http.StatusOK, http.Header{"Api-Version": []string{"1.45"}}, "OK")),
+		WithMockClient(mockPingResponse(http.StatusOK, PingResult{APIVersion: "1.45"})),
 	)
 	assert.NilError(t, err)
 
@@ -394,8 +394,7 @@ func TestNegotiateAPIVersionAutomatic(t *testing.T) {
 	ctx := t.Context()
 	client, err := New(
 		WithMockClient(func(req *http.Request) (*http.Response, error) {
-			hdr := http.Header{"Api-Version": []string{pingVersion}}
-			return mockResponse(http.StatusOK, hdr, "OK")(req)
+			return mockPingResponse(http.StatusOK, PingResult{APIVersion: pingVersion})(req)
 		}),
 		WithAPIVersionNegotiation(),
 	)
@@ -423,7 +422,7 @@ func TestNegotiateAPIVersionAutomatic(t *testing.T) {
 func TestNegotiateAPIVersionWithEmptyVersion(t *testing.T) {
 	client, err := New(
 		WithAPIVersion(""),
-		WithMockClient(mockResponse(http.StatusOK, http.Header{"Api-Version": []string{"1.50"}}, "OK")),
+		WithMockClient(mockPingResponse(http.StatusOK, PingResult{APIVersion: "1.50"})),
 	)
 	assert.NilError(t, err)
 
@@ -443,7 +442,7 @@ func TestNegotiateAPIVersionWithFixedVersion(t *testing.T) {
 	)
 	client, err := New(
 		WithAPIVersion(customVersion),
-		WithMockClient(mockResponse(http.StatusOK, http.Header{"Api-Version": []string{pingVersion}}, "OK")),
+		WithMockClient(mockPingResponse(http.StatusOK, PingResult{APIVersion: pingVersion})),
 	)
 	assert.NilError(t, err)