diff --git a/pkgs/servers/home-assistant/component-packages.nix b/pkgs/servers/home-assistant/component-packages.nix
index d3270846a53..abeacda73ba 100644
--- a/pkgs/servers/home-assistant/component-packages.nix
+++ b/pkgs/servers/home-assistant/component-packages.nix
@@ -598,7 +598,7 @@
     "openhome" = ps: with ps; [ openhomedevice ];
     "opensensemap" = ps: with ps; [ opensensemap-api ];
     "opensky" = ps: with ps; [ ];
-    "opentherm_gw" = ps: with ps; [ ]; # missing inputs: pyotgw
+    "opentherm_gw" = ps: with ps; [ pyotgw ];
     "openuv" = ps: with ps; [ pyopenuv ];
     "openweathermap" = ps: with ps; [ pyowm ];
     "opnsense" = ps: with ps; [ pyopnsense ];