diff --git a/src/ui/widget/paint-selector.cpp b/src/ui/widget/paint-selector.cpp
index 5ad356bd70b23474f5b7816466c7b594282bde39..fccad1112fbfa42b89f5be97e0bdd8a3a846b972 100644
--- a/src/ui/widget/paint-selector.cpp
+++ b/src/ui/widget/paint-selector.cpp
@@ -218,6 +218,9 @@ StyleToggleButton *PaintSelector::style_button_add(gchar const *pixmap, PaintSel
     b->set_visible(true);
     b->set_has_frame(false);
     b->set_style(mode);
+    if (_none) {
+        b->set_group(*_none);
+    }
 
     b->set_image_from_icon_name(pixmap, Gtk::IconSize::NORMAL); // Previously GTK_ICON_SIZE_BUTTON
 
diff --git a/src/ui/widget/paint-selector.h b/src/ui/widget/paint-selector.h
index f76eda68f6cfa78a5620674edaf59896fcf29e63..05ccf8d21b53c1e94db675f93228525251e21299 100644
--- a/src/ui/widget/paint-selector.h
+++ b/src/ui/widget/paint-selector.h
@@ -80,7 +80,7 @@ class PaintSelector : public Gtk::Box {
     Mode _mode;
 
     Gtk::Box *_style;
-    StyleToggleButton *_none;
+    StyleToggleButton *_none = nullptr;
     StyleToggleButton *_solid;
     StyleToggleButton *_gradient;
     StyleToggleButton *_radial;