diff --git a/modules/programs/qutebrowser.nix b/modules/programs/qutebrowser.nix
index da7d44b75..3483530f0 100644
--- a/modules/programs/qutebrowser.nix
+++ b/modules/programs/qutebrowser.nix
@@ -15,6 +15,8 @@ let
           (if v then "True" else "False")
         else if builtins.isString v then
           ''"${v}"''
+        else if builtins.isList v then
+          "[${concatStringsSep ", " (map formatValue v)}]"
         else
           builtins.toString v;
     in if builtins.isAttrs v then
diff --git a/tests/modules/programs/qutebrowser/settings.nix b/tests/modules/programs/qutebrowser/settings.nix
index 43aef9099..1f0f5db04 100644
--- a/tests/modules/programs/qutebrowser/settings.nix
+++ b/tests/modules/programs/qutebrowser/settings.nix
@@ -15,6 +15,7 @@ with lib;
           };
           tabs.bar.bg = "#000000";
         };
+        spellcheck.languages = [ "en-US" "sv-SE" ];
         tabs.tabs_are_windows = true;
       };
 
@@ -37,6 +38,7 @@ with lib;
             c.colors.hints.bg = "#000000"
             c.colors.hints.fg = "#ffffff"
             c.colors.tabs.bar.bg = "#000000"
+            c.spellcheck.languages = ["en-US", "sv-SE"]
             c.tabs.tabs_are_windows = True
             # Extra qutebrowser configuration.
           ''