diff --git a/app/src/main/java/org/kiwix/kiwixmobile/downloader/ChunkUtils.java b/app/src/main/java/org/kiwix/kiwixmobile/downloader/ChunkUtils.java
index 06d4b3923..0a0b12c32 100644
--- a/app/src/main/java/org/kiwix/kiwixmobile/downloader/ChunkUtils.java
+++ b/app/src/main/java/org/kiwix/kiwixmobile/downloader/ChunkUtils.java
@@ -21,9 +21,11 @@ import org.kiwix.kiwixmobile.utils.StorageUtils;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Locale;
 
 public class ChunkUtils {
 
+  @SuppressWarnings("SpellCheckingInspection")
   public static final String ALPHABET = "abcdefghijklmnopqrstuvwxyz";
   public static final String ZIM_EXTENSION = ".zim";
   public static final String PART = ".part.part";
@@ -42,11 +44,11 @@ public class ChunkUtils {
     for (String zim : fileNames) {
       String range;
       if (currentRange + CHUNK_SIZE >= contentLength) {
-        range = String.format("%d-", currentRange);
+        range = String.format(Locale.US, "%d-", currentRange);
         chunks.add(new Chunk(range, zim, url, contentLength, notificationID, currentRange, contentLength));
         currentRange += CHUNK_SIZE + 1;
       } else {
-        range = String.format("%d-%d", currentRange, currentRange + CHUNK_SIZE);
+        range = String.format(Locale.US, "%d-%d", currentRange, currentRange + CHUNK_SIZE);
         chunks.add(new Chunk(range, zim, url, contentLength, notificationID, currentRange, currentRange + CHUNK_SIZE));
         currentRange += CHUNK_SIZE + 1;
       }