diff --git a/src/iface-mixer.c b/src/iface-mixer.c
index 3ede5e1..5f35d2e 100644
--- a/src/iface-mixer.c
+++ b/src/iface-mixer.c
@@ -471,7 +471,7 @@ GtkWidget *create_iface_mixer_main(struct alsa_card *card) {
     card, "Mixer", G_CALLBACK(window_mixer_close_request)
   );
 
-  gtk_window_set_child(GTK_WINDOW(card->window_mixer), mixer_top);
+  create_scrollable_window(card->window_mixer, mixer_top);
 
   GtkWidget *levels_top = create_levels_controls(card);
 
diff --git a/src/window-mixer.c b/src/window-mixer.c
index c584182..76c45dc 100644
--- a/src/window-mixer.c
+++ b/src/window-mixer.c
@@ -28,6 +28,9 @@ GtkWidget *create_mixer_controls(struct alsa_card *card) {
   GtkWidget *mixer_top = gtk_grid_new();
   GArray *elems = card->elems;
 
+  gtk_widget_set_halign(mixer_top, GTK_ALIGN_CENTER);
+  gtk_widget_set_valign(mixer_top, GTK_ALIGN_CENTER);
+
   gtk_widget_set_margin(mixer_top, 5);
   gtk_grid_set_column_homogeneous(GTK_GRID(mixer_top), TRUE);