diff --git a/tree.yml b/tree.yml
index a10bfde7730..5eb24df0ee2 100644
--- a/tree.yml
+++ b/tree.yml
@@ -514,7 +514,7 @@ engineering101:
     # Redstone/Juno (FASA)
     FASAExplorerLFTLong:
         cost: 350
-     FASAExplorerSgt11Dec:
+    FASAExplorerSgt11Dec:
         cost: 20
     FASAExplorerSgt3Dec:
         cost: 10