diff --git a/src/window-levels.c b/src/window-levels.c
index 558b3e3..4cae8fe 100644
--- a/src/window-levels.c
+++ b/src/window-levels.c
@@ -104,6 +104,7 @@ GtkWidget *create_levels_controls(struct alsa_card *card) {
 
       // create the meter widget and attach to the grid
       GtkWidget *meter = gtk_dial_new_with_range(-80, 0, 1);
+      gtk_widget_set_sensitive(meter, FALSE);
       card->meters[meter_num++] = meter;
       gtk_grid_attach(GTK_GRID(grid), meter, j + 1, i + 1, 1, 1);
     }