diff --git a/nixos/modules/services/networking/babeld.nix b/nixos/modules/services/networking/babeld.nix
index 296de058cd97..807cdab494a2 100644
--- a/nixos/modules/services/networking/babeld.nix
+++ b/nixos/modules/services/networking/babeld.nix
@@ -6,8 +6,10 @@ let
 
   cfg = config.services.babeld;
 
+  conditionalBoolToString = value: if (isBool value) then (boolToString value) else (toString value);
+
   paramsString = params:
-    concatMapStringsSep " " (name: "${name} ${boolToString (getAttr name params)}")
+    concatMapStringsSep " " (name: "${name} ${conditionalBoolToString (getAttr name params)}")
                    (attrNames params);
 
   interfaceConfig = name: