diff --git a/homeassistant/components/knx/services.yaml b/homeassistant/components/knx/services.yaml
index 813bf758eb0..5eaaca25fd7 100644
--- a/homeassistant/components/knx/services.yaml
+++ b/homeassistant/components/knx/services.yaml
@@ -16,6 +16,7 @@ send:
       selector:
         text:
     response:
+      required: true
       default: false
       selector:
         boolean:
@@ -40,6 +41,7 @@ event_register:
         text:
     remove:
       default: false
+      required: true
       selector:
         boolean:
 exposure_register:
@@ -68,6 +70,7 @@ exposure_register:
         object:
     remove:
       default: false
+      required: true
       selector:
         boolean:
 reload: