diff --git a/nixos/modules/services/home-automation/home-assistant.nix b/nixos/modules/services/home-automation/home-assistant.nix
index cea8a2b14cc2..1e695abb7ced 100644
--- a/nixos/modules/services/home-automation/home-assistant.nix
+++ b/nixos/modules/services/home-automation/home-assistant.nix
@@ -35,7 +35,10 @@ let
   #   ...
   # } ];
   usedPlatforms = config:
-    if isAttrs config then
+    # don't recurse into derivations possibly creating an infinite recursion
+    if isDerivation config then
+      [ ]
+    else if isAttrs config then
       optional (config ? platform) config.platform
       ++ concatMap usedPlatforms (attrValues config)
     else if isList config then