diff --git a/machines/compute01/stirling-pdf.nix b/machines/compute01/stirling-pdf.nix
index 6acd590..0849983 100644
--- a/machines/compute01/stirling-pdf.nix
+++ b/machines/compute01/stirling-pdf.nix
@@ -16,7 +16,7 @@
 
     environment = {
       UI_APP_NAME = "DGNum PDF";
-      APP_LOCALE = "fr-FR";
+      SYSTEM_DEFAULT_LOCALE = "fr-FR";
     };
   };
 }