diff --git a/default.xml b/default.xml
index 32de4fd70436f66e552641f50778f7ab5ab6c27d..2fa30e2aa40d9dc7478c7f4f2b16e6b9a78b942e 100644
--- a/default.xml
+++ b/default.xml
@@ -47,6 +47,7 @@
   <project path="external/clang" name="platform/external/clang" />
   <project path="external/compiler-rt" name="platform/external/compiler-rt" />
   <project path="external/googletest" name="platform/external/googletest" />
+  <project path="external/jsoncpp" name="platform/external/jsoncpp" />
   <project path="external/libcxx" name="platform/external/libcxx" />
   <project path="external/libcxxabi" name="platform/external/libcxxabi" />
   <project path="external/libunwind" name="platform/external/libunwind" />