diff --git a/src/core/qgsauxiliarystorage.cpp b/src/core/qgsauxiliarystorage.cpp
index b0ec2f48af3..274572be1df 100644
--- a/src/core/qgsauxiliarystorage.cpp
+++ b/src/core/qgsauxiliarystorage.cpp
@@ -241,6 +241,8 @@ int QgsAuxiliaryLayer::createProperty( QgsPalLayerSettings::Property property, Q
 
         layer->labeling()->setSettings( settings, providerId );
       }
+
+      emit layer->styleChanged();
     }
 
     index = layer->fields().lookupField( fieldName );
@@ -269,6 +271,7 @@ int QgsAuxiliaryLayer::createProperty( QgsDiagramLayerSettings::Property propert
       settings.setDataDefinedProperties( c );
 
       layer->setDiagramLayerSettings( settings );
+      emit layer->styleChanged();
 
       index = layer->fields().lookupField( fieldName );
     }