diff --git a/.gitmodules b/.gitmodules
index 52ece628c57..c8442616179 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,8 @@
 [submodule "src/llvm"]
 	path = src/llvm
 	url = https://github.com/brson/llvm.git
+	branch = master
 [submodule "src/libuv"]
 	path = src/libuv
 	url = https://github.com/brson/libuv.git
+	branch = master