diff --git a/appserver/audiobook.nix b/appserver/audiobook.nix
index 8c90e39..d1f7da3 100644
--- a/appserver/audiobook.nix
+++ b/appserver/audiobook.nix
@@ -5,7 +5,7 @@
   ];
   services.audiobookshelf.group = "users";
   services.audiobookshelf.enable = true;
-  services.audiobookshelf.host = 0.0.0.0 ;
+  services.audiobookshelf.host = "0.0.0.0" ;
   services.audiobookshelf.port = 8000;
   services.audiobookshelf.openFirewall = true;
 }