diff --git a/src/activities/browser/OpdsBookBrowserActivity.cpp b/src/activities/browser/OpdsBookBrowserActivity.cpp
index f6a58385..259a55da 100644
--- a/src/activities/browser/OpdsBookBrowserActivity.cpp
+++ b/src/activities/browser/OpdsBookBrowserActivity.cpp
@@ -333,6 +333,20 @@ void OpdsBookBrowserActivity::downloadBook(const OpdsEntry& book) {
       });
 
   if (result == HttpDownloader::OK) {
+    FsFile downloadedFile;
+    if (!Storage.openFileForRead("OPDS", filename, downloadedFile) || downloadedFile.size() == 0) {
+      LOG_ERR("OPDS", "Downloaded file is empty or unreadable: %s", filename.c_str());
+      if (downloadedFile) {
+        downloadedFile.close();
+      }
+      Storage.remove(filename.c_str());
+      state = BrowserState::ERROR;
+      errorMessage = tr(STR_DOWNLOAD_FAILED);
+      requestUpdate();
+      return;
+    }
+    downloadedFile.close();
+
     LOG_DBG("OPDS", "Download complete: %s", filename.c_str());
 
     // Invalidate any existing cache for this file to prevent stale metadata issues
diff --git a/src/network/HttpDownloader.cpp b/src/network/HttpDownloader.cpp
index 799b8874..34a39e0c 100644
--- a/src/network/HttpDownloader.cpp
+++ b/src/network/HttpDownloader.cpp
@@ -179,12 +179,6 @@ HttpDownloader::DownloadError HttpDownloader::downloadToFile(const std::string&
     return FILE_ERROR;
   }
 
-  if (contentLength == 0 && downloaded == 0) {
-    LOG_ERR("HTTP", "Download failed: no data received");
-    Storage.remove(destPath.c_str());
-    return HTTP_ERROR;
-  }
-
   // Verify download size if known
   if (contentLength > 0 && downloaded != contentLength) {
     LOG_ERR("HTTP", "Size mismatch: got %zu, expected %zu", downloaded, contentLength);