diff --git a/hosts/thrall/default.nix b/hosts/thrall/default.nix
index 391c744..b254020 100644
--- a/hosts/thrall/default.nix
+++ b/hosts/thrall/default.nix
@@ -98,6 +98,11 @@ in {
             publicKey = "NG9y+0RMDTjiG65yC4Z0ymJ0G5fe1mOhl4GyC3xAh1k=";
             allowedIPs = [ "10.0.0.3/32" ];
           }
+          {
+            # homematic
+            publicKey = "slqWgVksOCav0bASxupaFGqfr6vajxDRNIlZYocONQ4=";
+            allowedIPs = [ "10.0.0.4/32" ];
+          }
         ];
       };
     };