diff --git a/src/sound/snd_ad1848.c b/src/sound/snd_ad1848.c
index 62c3e35e9..ebfa9423b 100644
--- a/src/sound/snd_ad1848.c
+++ b/src/sound/snd_ad1848.c
@@ -425,6 +425,19 @@ ad1848_write(uint16_t addr, uint8_t val, void *priv)
                                 ad1848->fm_vol_r = (int) ad1848_vols_5bits_aux_gain[val & 0x1f];
                         }
                     }
+                    if ((ad1848->type >= AD1848_TYPE_CS4232) && (ad1848->type <= AD1848_TYPE_CS4236)) {
+                        if (ad1848->index == 18) {
+                            if (val & 0x80)
+                                ad1848->fm_vol_l = 0;
+                            else
+                                ad1848->fm_vol_l = (int) ad1848_vols_5bits_aux_gain[val & 0x1f];
+                        } else {
+                            if (val & 0x80)
+                                ad1848->fm_vol_r = 0;
+                            else
+                                ad1848->fm_vol_r = (int) ad1848_vols_5bits_aux_gain[val & 0x1f];
+                        }
+                    }
                     break;
 
                 case 20 ... 21: