diff --git a/src/nix/get-env.sh b/src/nix/get-env.sh
index 39fa6f9ac..5b6162b4b 100644
--- a/src/nix/get-env.sh
+++ b/src/nix/get-env.sh
@@ -17,6 +17,7 @@ __functions="$(declare -F)"
 
 __dumpEnv() {
     printf '{\n'
+    printf '  "version": 1,\n'
 
     printf '  "bashFunctions": {\n'
     local __first=1