diff --git a/lib/Facebook/OpenGraph.pm b/lib/Facebook/OpenGraph.pm
index 34f9c5d..1a9b5c1 100644
--- a/lib/Facebook/OpenGraph.pm
+++ b/lib/Facebook/OpenGraph.pm
@@ -451,8 +451,11 @@ sub request {
 
     my $content = q{};
     if ($method eq 'POST') {
-        if ($param_ref->{source} || $param_ref->{file} || $param_ref->{upload_phase} ) {
-            # post image or video file
+        if ($param_ref->{source}
+            || $param_ref->{file}
+            || $param_ref->{upload_phase}
+            || $param_ref->{captions_file}) {
+            # post image, video or caption file
 
             # https://developers.facebook.com/docs/reference/api/video/
             # When posting a video, use graph-video.facebook.com .
@@ -576,16 +579,11 @@ sub prep_param {
         $param_ref->{permissions} = ref $perms ? join q{,}, @$perms : $perms;
     }
 
-    # Source, file and video_file_chunk parameter contains file path.
+    # Source, file, video_file_chunk and captions_file parameter contains file path.
     # It must be an array ref to work with HTTP::Request::Common.
-    if (my $path = $param_ref->{source}) {
-        $param_ref->{source} = ref $path ? $path : [$path];
-    }
-    if (my $path = $param_ref->{file}) {
-        $param_ref->{file} = ref $path ? $path : [$path];
-    }
-    if (my $path = $param_ref->{video_file_chunk}) {
-        $param_ref->{video_file_chunk} = ref $path ? $path : [$path];
+    for my $file (qw/source file video_file_chunk captions_file/) {
+        next unless my $path = $param_ref->{$file};
+        $param_ref->{$file} = ref $path ? $path : [$path];
     }
 
     # use Field Expansion
diff --git a/t/003_publish/03_post_movie.t b/t/003_publish/03_post_movie.t
index 532944d..0e858ff 100644
--- a/t/003_publish/03_post_movie.t
+++ b/t/003_publish/03_post_movie.t
@@ -188,4 +188,54 @@ subtest 'transfer chunked file content with Resumable' => sub {
 
 };
 
+subtest 'post captioned movie' => sub {
+
+    $Mock_furl_http->mock(
+        request => sub {
+            my ($mock, %args) = @_;
+
+            ok delete $args{content}, 'content'; # too huge to compare, so just check if it's given
+            is_deeply(
+                \%args,
+                +{
+                    url     => 'https://graph.facebook.com/video_id_12345/captions',
+                    method  => 'POST',
+                    headers => [
+                        'Authorization'  => 'OAuth 12345qwerty',
+                        'Content-Length' => 254,
+                        'Content-Type'   => 'multipart/form-data; boundary=xYzZY',
+                    ],
+                },
+                'args'
+            );
+
+            return (
+                1,
+                200,
+                'OK',
+                ['Content-Type' => 'text/javascript; charset=UTF-8'],
+                encode_json(+{
+                    success => JSON::true,
+                }),
+            );
+
+        },
+    );
+
+    my $fb = Facebook::OpenGraph->new(+{
+        app_id       => 12345678,
+        access_token => '12345qwerty',
+    });
+    my $response = $fb->publish(
+        '/video_id_12345/captions',
+        +{
+            captions_file  => './t/resource/captions.ja_JP.srt',
+            default_locale => 'ja_JP',
+        }
+    );
+
+    is_deeply $response, +{ success => JSON::true }, 'response';
+
+};
+
 done_testing;
diff --git a/t/resource/captions.ja_JP.srt b/t/resource/captions.ja_JP.srt
new file mode 100644
index 0000000..8a9815d
--- /dev/null
+++ b/t/resource/captions.ja_JP.srt
@@ -0,0 +1,3 @@
+1
+00:00:00,000 --> 00:00:03,000
+Hello, world!