diff --git a/tests/test-sources/plugins/by-name/otter/default.nix b/tests/test-sources/plugins/by-name/otter/default.nix
index 48c77d14..8ba902df 100644
--- a/tests/test-sources/plugins/by-name/otter/default.nix
+++ b/tests/test-sources/plugins/by-name/otter/default.nix
@@ -1,5 +1,15 @@
 {
   empty = {
+    plugins = {
+      otter.enable = true;
+      # Avoid the warning
+      treesitter = {
+        enable = true;
+        highlight.enable = true;
+      };
+    };
+  };
+  emptyOldApi = {
     plugins = {
       otter.enable = true;
       # Avoid the warning
@@ -15,7 +25,7 @@
       # Avoid the warning
       treesitter = {
         enable = true;
-        settings.highlight.enable = true;
+        highlight.enable = true;
       };
 
       otter = {