diff --git a/.envrc b/.envrc
index dcde8d423..d89bcd9d6 100644
--- a/.envrc
+++ b/.envrc
@@ -3,3 +3,4 @@
 
 export PATH="${PWD}/tools/bin:${PATH}"
 export NIX_PATH="nixpkgs=${PWD}/default.nix"
+export REPO_ROOT="${PWD}"