diff --git a/docs/abra/hack.md b/docs/abra/hack.md
index 3d799de..8564aa7 100644
--- a/docs/abra/hack.md
+++ b/docs/abra/hack.md
@@ -131,7 +131,7 @@ For some tests an actual server is needed, where apps can be deployed. You can e
 ##### Remote swarm
 
 ```
-export ABRA_SERVER="test.example.com"
+export TEST_SERVER="test.example.com"
 export ABRA_DIR="$HOME/.abra_test"
 ```