diff --git a/default.xml b/default.xml
index 03df1a0..2c58001 100644
--- a/default.xml
+++ b/default.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <manifest>
   <remote name="origin" fetch=".." />
+  <remote name="aosp" fetch="https://android.googlesource.com/" />
   <default remote="origin" revision="master" />
 
   <project path="build" name="build">
@@ -12,4 +13,13 @@
   <project path="linux" name="linux" />
   <project path="misc" name="misc" />
   <project path="prebuilts" name="prebuilts" />
+
+  <project path="toolchains/clang/darwin-x86"
+           name="platform/prebuilts/clang/host/darwin-x86"
+           remote="aosp" revision="master"
+           clone-depth="1" />
+  <project path="toolchains/clang/linux-x86"
+           name="platform/prebuilts/clang/host/linux-x86"
+           remote="aosp" revision="master"
+           clone-depth="1" />
 </manifest>