diff --git a/src/main/java/com/skcraft/launcher/model/modpack/Manifest.java b/src/main/java/com/skcraft/launcher/model/modpack/Manifest.java
index c6bcfaf..8ab9b9d 100644
--- a/src/main/java/com/skcraft/launcher/model/modpack/Manifest.java
+++ b/src/main/java/com/skcraft/launcher/model/modpack/Manifest.java
@@ -39,7 +39,7 @@
     @JsonIgnore
     public URL getLibrariesUrl() {
         if (Strings.nullToEmpty(getLibrariesLocation()) == null) {
-            return baseUrl;
+            return null;
         }
 
         try {
diff --git a/src/main/java/com/skcraft/launcher/update/Updater.java b/src/main/java/com/skcraft/launcher/update/Updater.java
index 791c7c6..58165c3 100644
--- a/src/main/java/com/skcraft/launcher/update/Updater.java
+++ b/src/main/java/com/skcraft/launcher/update/Updater.java
@@ -115,6 +115,11 @@
         progress = new DefaultProgress(-1, _("instanceUpdater.readingVersion"));
         VersionManifest version = readVersionManifest(manifest);
 
+        URL url = manifest.getLibrariesUrl();
+        if (url != null) {
+            librarySources.add(url);
+        }
+
         progress = new DefaultProgress(-1, _("instanceUpdater.buildingDownloadList"));
 
         // Install the .jar