diff --git a/provider/provider.go b/provider/provider.go
index dcaa9e6c..05c56925 100644
--- a/provider/provider.go
+++ b/provider/provider.go
@@ -94,6 +94,7 @@ type OutputFile struct {
 	VideoCodec string `json:"videoCodec"`
 	Height     int64  `json:"height"`
 	Width      int64  `json:"width"`
+	FileSize   int64  `json:"fileSize"`
 }
 
 // SourceInfo contains information about media transcoded using the Transcoding
diff --git a/provider/zencoder/zencoder.go b/provider/zencoder/zencoder.go
index 6ad81599..41dd45f0 100644
--- a/provider/zencoder/zencoder.go
+++ b/provider/zencoder/zencoder.go
@@ -329,6 +329,7 @@ func (z *zencoderProvider) getJobOutputs(job *db.Job, outputMediaFiles []*zencod
 			VideoCodec: mediaFile.VideoCodec,
 			Width:      int64(mediaFile.Width),
 			Height:     int64(mediaFile.Height),
+			FileSize:   mediaFile.FileSizeInBytes,
 		}
 		if mediaFile.State == "finished" && mediaFile.Format == "" && strings.HasSuffix(mediaFile.Url, "m3u8") {
 			file.Container = "m3u8"
diff --git a/provider/zencoder/zencoder_fake_test.go b/provider/zencoder/zencoder_fake_test.go
index fae8afaf..195d2d7d 100644
--- a/provider/zencoder/zencoder_fake_test.go
+++ b/provider/zencoder/zencoder_fake_test.go
@@ -39,20 +39,22 @@ func (z *FakeZencoder) GetJobDetails(id int64) (*zencoder.JobDetails, error) {
 			SubmittedAt: "2016-11-05T05:02:57Z",
 			OutputMediaFiles: []*zencoder.MediaFile{
 				{
-					Url:          "https://mybucket.s3.amazonaws.com/destination-dir/output1.mp4",
-					Format:       "mp4",
-					VideoCodec:   "h264",
-					Width:        1920,
-					Height:       1080,
-					DurationInMs: 10000,
+					Url:             "https://mybucket.s3.amazonaws.com/destination-dir/output1.mp4",
+					Format:          "mp4",
+					VideoCodec:      "h264",
+					Width:           1920,
+					Height:          1080,
+					DurationInMs:    10000,
+					FileSizeInBytes: 66885256,
 				},
 				{
-					Url:          "https://mybucket.s3.amazonaws.com/destination-dir/output2.webm",
-					Format:       "webm",
-					VideoCodec:   "vp8",
-					Width:        1080,
-					Height:       720,
-					DurationInMs: 10000,
+					Url:             "https://mybucket.s3.amazonaws.com/destination-dir/output2.webm",
+					Format:          "webm",
+					VideoCodec:      "vp8",
+					Width:           1080,
+					Height:          720,
+					DurationInMs:    10000,
+					FileSizeInBytes: 92140022,
 				},
 			},
 		},
diff --git a/provider/zencoder/zencoder_test.go b/provider/zencoder/zencoder_test.go
index 0ca234e4..4acbdd43 100644
--- a/provider/zencoder/zencoder_test.go
+++ b/provider/zencoder/zencoder_test.go
@@ -893,10 +893,12 @@ func TestZencoderJobStatus(t *testing.T) {
 							"videoCodec": "h264",
 							"height":     float64(1080),
 							"width":      float64(1920),
+							"fileSize":   float64(66885256),
 						},
 						map[string]interface{}{
 							"height":     float64(720),
 							"width":      float64(1080),
+							"fileSize":   float64(92140022),
 							"path":       "s3://mybucket/destination-dir/output2.webm",
 							"container":  "webm",
 							"videoCodec": "vp8",
@@ -934,10 +936,12 @@ func TestZencoderJobStatus(t *testing.T) {
 							"videoCodec": "h264",
 							"height":     float64(1080),
 							"width":      float64(1920),
+							"fileSize":   float64(66885256),
 						},
 						map[string]interface{}{
 							"height":     float64(720),
 							"width":      float64(1080),
+							"fileSize":   float64(92140022),
 							"path":       "s3://mybucket/destination-dir/output2.webm",
 							"container":  "webm",
 							"videoCodec": "vp8",