diff --git a/indra/newview/CMakeLists.txt b/indra/newview/CMakeLists.txt
index be6b4f126..98de67052 100644
--- a/indra/newview/CMakeLists.txt
+++ b/indra/newview/CMakeLists.txt
@@ -1719,7 +1719,8 @@ if (LINUX)
   add_custom_target(copy_l_viewer_manifest ALL DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/.${product}.copy_touched)
 
   if (PACKAGE)
-    add_custom_target(llpackage ALL DEPENDS ${product}.tar.bz2)
+    add_custom_target(llpackage ALL DEPENDS ${product}.tar.xz)
+    # Make sure we don't run two instances of viewer_manifest.py at the same time.
     add_dependencies(llpackage copy_l_viewer_manifest)
     check_message_template(llpackage)
   endif (PACKAGE)