diff --git a/src/main/scala/Configs.scala b/src/main/scala/Configs.scala
index 34934d6a..a38d068a 100644
--- a/src/main/scala/Configs.scala
+++ b/src/main/scala/Configs.scala
@@ -263,7 +263,7 @@ class WithMemtest extends Config (
 
     case NTiles => site(NGeneratorTiles)
 
-    case NGeneratorTiles => 2
+    case NGeneratorTiles => 1
     case NGeneratorsPerTile => 1
     case GenerateUncached => true
     case GenerateCached => true