diff --git a/apps/plugins/doom/rockdoom.c b/apps/plugins/doom/rockdoom.c
index d22a946d90..ca08ec1665 100644
--- a/apps/plugins/doom/rockdoom.c
+++ b/apps/plugins/doom/rockdoom.c
@@ -717,7 +717,7 @@ enum plugin_status plugin_start(const void* parameter)
    int mod = (rb->sound_max(SOUND_VOLUME)-rb->sound_min(SOUND_VOLUME))/15;
    if(mod == 0)
        mod = rb->global_settings->volume;
-   systemvol= rb->global_settings->volume-rb->global_settings->volume;
+   systemvol= rb->global_settings->volume-rb->global_settings->volume%mod;
    general_translucency = default_translucency;                    // phares
 
    backlight_force_on();