diff --git a/config/config_test.go b/config/config_test.go
index 0d569c59f3..c70a730090 100644
--- a/config/config_test.go
+++ b/config/config_test.go
@@ -738,6 +738,7 @@ var expectedConf = &Config{
 					Filters:          []moby.Filter{},
 					Host:             "unix:///var/run/docker.sock",
 					Port:             80,
+					HostNetworkHost:  "localhost",
 					RefreshInterval:  model.Duration(60 * time.Second),
 					HTTPClientConfig: config.DefaultHTTPClientConfig,
 				},
diff --git a/discovery/moby/docker_test.go b/discovery/moby/docker_test.go
index 9ede9ab539..bb84b1571a 100644
--- a/discovery/moby/docker_test.go
+++ b/discovery/moby/docker_test.go
@@ -49,7 +49,7 @@ host: %s
 	tg := tgs[0]
 	require.NotNil(t, tg)
 	require.NotNil(t, tg.Targets)
-	require.Equal(t, 2, len(tg.Targets))
+	require.Equal(t, 3, len(tg.Targets))
 
 	for i, lbls := range []model.LabelSet{
 		{
@@ -93,6 +93,16 @@ host: %s
 			"__meta_docker_network_name":                               "dockersd_default",
 			"__meta_docker_network_scope":                              "local",
 		},
+		{
+			"__address__":                "localhost",
+			"__meta_docker_container_id": "54ed6cc5c0988260436cb0e739b7b6c9cad6c439a93b4c4fdbe9753e1c94b189",
+			"__meta_docker_container_label_com_docker_compose_project": "dockersd",
+			"__meta_docker_container_label_com_docker_compose_service": "host_networking",
+			"__meta_docker_container_label_com_docker_compose_version": "1.25.0",
+			"__meta_docker_container_name":                             "/dockersd_host_networking_1",
+			"__meta_docker_container_network_mode":                     "host",
+			"__meta_docker_network_ip":                                 "",
+		},
 	} {
 		t.Run(fmt.Sprintf("item %d", i), func(t *testing.T) {
 			require.Equal(t, lbls, tg.Targets[i])
diff --git a/discovery/moby/testdata/dockerprom/containers/json_limit_0.json b/discovery/moby/testdata/dockerprom/containers/json_limit_0.json
index 6405a091c8..37f575d22c 100644
--- a/discovery/moby/testdata/dockerprom/containers/json_limit_0.json
+++ b/discovery/moby/testdata/dockerprom/containers/json_limit_0.json
@@ -89,5 +89,44 @@
       }
     },
     "Mounts": []
+  },
+  {
+    "Id": "54ed6cc5c0988260436cb0e739b7b6c9cad6c439a93b4c4fdbe9753e1c94b189",
+    "Names": [
+      "/dockersd_host_networking_1"
+    ],
+    "Image": "httpd",
+    "ImageID": "sha256:73b8cfec11558fe86f565b4357f6d6c8560f4c49a5f15ae970a24da86c9adc93",
+    "Command": "httpd-foreground",
+    "Created": 1627440494,
+    "Ports": [],
+    "Labels": {
+      "com.docker.compose.project": "dockersd",
+      "com.docker.compose.service": "host_networking",
+      "com.docker.compose.version": "1.25.0"
+    },
+    "State": "running",
+    "Status": "Up 3 minutes",
+    "HostConfig": { "NetworkMode": "host" },
+    "NetworkSettings": {
+      "Networks": {
+        "host": {
+          "IPAMConfig": null,
+          "Links": null,
+          "Aliases": null,
+          "NetworkID": "80c4459fa193c5c8b57e90e117d2f899d1a86708e548738149d62e03df0ec35c",
+          "EndpointID": "e9bea4c499c34bd41609b0e1e9b38f9964c69180c1a22130f28b6af802c156d8",
+          "Gateway": "",
+          "IPAddress": "",
+          "IPPrefixLen": 0,
+          "IPv6Gateway": "",
+          "GlobalIPv6Address": "",
+          "GlobalIPv6PrefixLen": 0,
+          "MacAddress": "",
+          "DriverOpts": null
+        }
+      }
+    },
+    "Mounts": []
   }
 ]