diff --git a/.envrc b/.envrc
index ca63b0de..b5c58f97 100644
--- a/.envrc
+++ b/.envrc
@@ -2,3 +2,6 @@ PATH_add tools
 
 REPO_ROOT=$(pwd)
 export REPO_ROOT
+
+# Use Go modules (required for this repo; gopls/Go extension need this)
+export GO111MODULE=on