diff --git a/app/core/gimpimage-convert-type.c b/app/core/gimpimage-convert-type.c
index d48eb86c5f..5acac2d746 100644
--- a/app/core/gimpimage-convert-type.c
+++ b/app/core/gimpimage-convert-type.c
@@ -1036,7 +1036,7 @@ gimp_image_convert_type (GimpImage               *image,
         {
           gimp_drawable_convert_type (GIMP_DRAWABLE (layer), image, new_type,
                                       gimp_drawable_get_precision (GIMP_DRAWABLE (layer)),
-                                      0, 0, FALSE,
+                                      0, 0, TRUE,
                                       TRUE, NULL);
         }
     }