diff --git a/nixos/modules/virtualisation/oci-containers.nix b/nixos/modules/virtualisation/oci-containers.nix
index b7dde1126933..d4033df032e2 100644
--- a/nixos/modules/virtualisation/oci-containers.nix
+++ b/nixos/modules/virtualisation/oci-containers.nix
@@ -132,8 +132,8 @@ let
           default = [ ];
           description = "Environment files for this container.";
           example = [
-            /path/to/.env
-            /path/to/.env.secret
+            "/path/to/.env"
+            "/path/to/.env.secret"
           ];
         };