diff --git a/src/nix/get-env.sh b/src/nix/get-env.sh
index 071edf9b9..371f80769 100644
--- a/src/nix/get-env.sh
+++ b/src/nix/get-env.sh
@@ -14,6 +14,7 @@ __functions="$(declare -F)"
 
 __dumpEnv() {
     printf '{\n'
+    printf '  "version": 1,\n'
 
     printf '  "bashFunctions": {\n'
     local __first=1