diff --git a/indra/cmake/Copy3rdPartyLibs.cmake b/indra/cmake/Copy3rdPartyLibs.cmake
index 92ebd75006b7e448a7ce8c8ae37e6584a7ca0cff..2e8bb04db12107ba46739d7072e7e48db45cd97d 100644
--- a/indra/cmake/Copy3rdPartyLibs.cmake
+++ b/indra/cmake/Copy3rdPartyLibs.cmake
@@ -124,7 +124,7 @@ elseif(DARWIN)
     set(SHARED_LIB_STAGING_DIR_RELWITHDEBINFO   "${SHARED_LIB_STAGING_DIR}/RelWithDebInfo/Resources")
     set(SHARED_LIB_STAGING_DIR_RELEASE          "${SHARED_LIB_STAGING_DIR}/Release/Resources")
 
-    set(vivox_src_dir "${CMAKE_SOURCE_DIR}/newview/vivox-runtime/universal-darwin")
+    set(vivox_src_dir "${ARCH_PREBUILT_DIRS_RELEASE}")
     set(vivox_files
         SLVoice
         libsndfile.dylib
@@ -159,7 +159,7 @@ elseif(LINUX)
     set(SHARED_LIB_STAGING_DIR_RELWITHDEBINFO   "${SHARED_LIB_STAGING_DIR}")
     set(SHARED_LIB_STAGING_DIR_RELEASE          "${SHARED_LIB_STAGING_DIR}")
 
-    set(vivox_src_dir "${CMAKE_SOURCE_DIR}/newview/vivox-runtime/i686-linux")
+    set(vivox_src_dir "${ARCH_PREBUILT_DIRS_RELEASE}")
     set(vivox_files
         libsndfile.so.1
         libortp.so