diff --git a/pkg/kubelet/container/runtime.go b/pkg/kubelet/container/runtime.go
index bbc322b1975..8a154f272c8 100644
--- a/pkg/kubelet/container/runtime.go
+++ b/pkg/kubelet/container/runtime.go
@@ -254,17 +254,6 @@ func (c *ContainerID) UnmarshalJSON(data []byte) error {
 	return c.ParseString(string(data))
 }
 
-// DockerID is an ID of docker container. It is a type to make it clear when we're working with docker container Ids
-type DockerID string
-
-// ContainerID converts DockerID into a ContainerID.
-func (id DockerID) ContainerID() ContainerID {
-	return ContainerID{
-		Type: "docker",
-		ID:   string(id),
-	}
-}
-
 // State represents the state of a container
 type State string
 
diff --git a/pkg/kubelet/kuberuntime/legacy_test.go b/pkg/kubelet/kuberuntime/legacy_test.go
index 7d99032fd3d..61cf9d92461 100644
--- a/pkg/kubelet/kuberuntime/legacy_test.go
+++ b/pkg/kubelet/kuberuntime/legacy_test.go
@@ -40,10 +40,10 @@ func TestLogSymLink(t *testing.T) {
 	containerLogsDir := "/foo/bar"
 	podFullName := randStringBytes(128)
 	containerName := randStringBytes(70)
-	dockerID := randStringBytes(80)
+	containerID := randStringBytes(80)
 	// The file name cannot exceed 255 characters. Since .log suffix is required, the prefix cannot exceed 251 characters.
-	expectedPath := filepath.Join(containerLogsDir, fmt.Sprintf("%s_%s-%s", podFullName, containerName, dockerID)[:251]+".log")
-	as.Equal(expectedPath, logSymlink(containerLogsDir, podFullName, containerName, dockerID))
+	expectedPath := filepath.Join(containerLogsDir, fmt.Sprintf("%s_%s-%s", podFullName, containerName, containerID)[:251]+".log")
+	as.Equal(expectedPath, logSymlink(containerLogsDir, podFullName, containerName, containerID))
 }
 
 func TestLegacyLogSymLink(t *testing.T) {