diff --git a/README.md b/README.md
index 1c608216..ecb06f4b 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@ a JSON with the following structure:
       "filename": "ota-package.zip",
       "id": "5eb63bbbe01eeed093cb22bb8f5acdc3",
       "romtype": "nightly",
+      "size": 314572800,
       "url": "https://example.com/ota-package.zip",
       "version": "15.1"
     }
@@ -27,6 +28,7 @@ The `datetime` attribute is the build date expressed as UNIX timestamp.
 The `filename` attribute is the name of the file to be downloaded.  
 The `id` attribute is a string that uniquely identifies the update.  
 The `romtype` attribute is the string to be compared with the `ro.lineage.releasetype` property.  
+The `size` attribute is the size of the update expressed in bytes.  
 The `url` attribute is the URL of the file to be downloaded.  
 The `version` attribute is the string to be compared with the `ro.lineage.build.version` property.  
 
diff --git a/src/org/lineageos/updater/misc/Utils.java b/src/org/lineageos/updater/misc/Utils.java
index c2c8df61..8ce368e1 100644
--- a/src/org/lineageos/updater/misc/Utils.java
+++ b/src/org/lineageos/updater/misc/Utils.java
@@ -88,6 +88,7 @@ public class Utils {
         update.setName(object.getString("filename"));
         update.setDownloadId(object.getString("id"));
         update.setType(object.getString("romtype"));
+        update.setFileSize(object.getLong("size"));
         update.setDownloadUrl(object.getString("url"));
         update.setVersion(object.getString("version"));
         return update;
diff --git a/src/org/lineageos/updater/model/Update.java b/src/org/lineageos/updater/model/Update.java
index d9296c3b..3ad17dea 100644
--- a/src/org/lineageos/updater/model/Update.java
+++ b/src/org/lineageos/updater/model/Update.java
@@ -22,7 +22,6 @@ public class Update extends UpdateBase implements UpdateInfo {
     private UpdateStatus mStatus = UpdateStatus.UNKNOWN;
     private int mPersistentStatus = UpdateStatus.Persistent.UNKNOWN;
     private File mFile;
-    private long mFileSize;
     private int mProgress;
     private long mEta;
     private long mSpeed;
@@ -42,7 +41,6 @@ public class Update extends UpdateBase implements UpdateInfo {
         mStatus = update.getStatus();
         mPersistentStatus = update.getPersistentStatus();
         mFile = update.getFile();
-        mFileSize = update.getFileSize();
         mProgress = update.getProgress();
         mEta = update.getEta();
         mSpeed = update.getSpeed();
@@ -78,15 +76,6 @@ public class Update extends UpdateBase implements UpdateInfo {
         mFile = file;
     }
 
-    @Override
-    public long getFileSize() {
-        return mFileSize;
-    }
-
-    public void setFileSize(long fileSize) {
-        mFileSize = fileSize;
-    }
-
     @Override
     public int getProgress() {
         return mProgress;
diff --git a/src/org/lineageos/updater/model/UpdateBase.java b/src/org/lineageos/updater/model/UpdateBase.java
index 12bc9fe6..8fcf09c8 100644
--- a/src/org/lineageos/updater/model/UpdateBase.java
+++ b/src/org/lineageos/updater/model/UpdateBase.java
@@ -23,6 +23,7 @@ public class UpdateBase implements UpdateBaseInfo {
     private long mTimestamp;
     private String mType;
     private String mVersion;
+    private long mFileSize;
 
     public UpdateBase() {
     }
@@ -34,6 +35,7 @@ public class UpdateBase implements UpdateBaseInfo {
         mTimestamp = update.getTimestamp();
         mType = update.getType();
         mVersion = update.getVersion();
+        mFileSize = update.getFileSize();
     }
 
     @Override
@@ -89,4 +91,13 @@ public class UpdateBase implements UpdateBaseInfo {
     public void setDownloadUrl(String downloadUrl) {
         mDownloadUrl = downloadUrl;
     }
+
+    @Override
+    public long getFileSize() {
+        return mFileSize;
+    }
+
+    public void setFileSize(long fileSize) {
+        mFileSize = fileSize;
+    }
 }
diff --git a/src/org/lineageos/updater/model/UpdateBaseInfo.java b/src/org/lineageos/updater/model/UpdateBaseInfo.java
index b5aad8be..2041582a 100644
--- a/src/org/lineageos/updater/model/UpdateBaseInfo.java
+++ b/src/org/lineageos/updater/model/UpdateBaseInfo.java
@@ -27,4 +27,6 @@ public interface UpdateBaseInfo {
     String getVersion();
 
     String getDownloadUrl();
+
+    long getFileSize();
 }