diff --git a/src/kcmoduleqml.cpp b/src/kcmoduleqml.cpp
--- a/src/kcmoduleqml.cpp
+++ b/src/kcmoduleqml.cpp
@@ -83,6 +83,9 @@
     connect(d->configModule.get(), &KQuickAddons::ConfigModule::needsSaveChanged, this, [=] {
         emit changed(d->configModule->needsSave());
     });
+    connect(d->configModule.get(), &KQuickAddons::ConfigModule::representsDefaultsChanged, this, [=] {
+        emit defaulted(d->configModule->representsDefaults());
+    });
 
     setNeedsAuthorization(d->configModule->needsAuthorization());
     connect(d->configModule.get(), &KQuickAddons::ConfigModule::needsAuthorizationChanged, this, [=] {