diff --git a/nixos/modules/services/misc/home-assistant.nix b/nixos/modules/services/misc/home-assistant.nix
index fdcfe6bc2b8..0756e81612a 100644
--- a/nixos/modules/services/misc/home-assistant.nix
+++ b/nixos/modules/services/misc/home-assistant.nix
@@ -37,7 +37,7 @@ let
   # List of components used in config
   extraComponents = filter useComponent availableComponents;
 
-  package = if cfg.autoExtraComponents
+  package = if (cfg.autoExtraComponents && cfg.config != null)
     then (cfg.package.override { inherit extraComponents; })
     else cfg.package;
 
@@ -110,7 +110,9 @@ in {
       '';
       description = ''
         Home Assistant package to use.
-        Override <literal>extraPackages</literal> in order to add additional dependencies.
+        Override <literal>extraPackages</literal> or <literal>extraComponents</literal> in order to add additional dependencies.
+        If you specify <option>config</option> and do not set <option>autoExtraComponents</option>
+        to <literal>false</literal>, overriding <literal>extraComponents</literal> will have no effect.
       '';
     };