diff --git a/Library/Homebrew/brew.sh b/Library/Homebrew/brew.sh
index e7b69fca8a..ee1258b4c1 100644
--- a/Library/Homebrew/brew.sh
+++ b/Library/Homebrew/brew.sh
@@ -162,6 +162,7 @@ export HOMEBREW_CACHE
 export HOMEBREW_CELLAR
 export HOMEBREW_SYSTEM
 export HOMEBREW_CURL
+export HOMEBREW_GIT
 export HOMEBREW_PROCESSOR
 export HOMEBREW_PRODUCT
 export HOMEBREW_OS_VERSION