diff --git a/python/core/auto_generated/qgsmaplayer.sip.in b/python/core/auto_generated/qgsmaplayer.sip.in
index 452a6379094..0913a2dbd13 100644
--- a/python/core/auto_generated/qgsmaplayer.sip.in
+++ b/python/core/auto_generated/qgsmaplayer.sip.in
@@ -1538,7 +1538,7 @@ Emitted whenever the layer's data source has been changed.
 .. versionadded:: 3.5
 %End
 
-    void styleLoaded( const QgsMapLayer::StyleCategories &categories );
+    void styleLoaded( QgsMapLayer::StyleCategories categories );
 %Docstring
 Emitted when a style has been loaded