diff --git a/czkawka_core/src/same_music.rs b/czkawka_core/src/same_music.rs
index 64d2269..974fc98 100644
--- a/czkawka_core/src/same_music.rs
+++ b/czkawka_core/src/same_music.rs
@@ -272,8 +272,10 @@ impl SameMusic {
 
     pub fn set_check_type(&mut self, check_type: CheckingMethod) {
         assert!([CheckingMethod::AudioTags, CheckingMethod::AudioContent].contains(&check_type));
-        self.check_type = check_type
+        self.check_type = check_type;
     }
+
+    #[must_use]
     pub fn get_check_type(&self) -> CheckingMethod {
         self.check_type
     }
diff --git a/czkawka_gui/src/connect_things/connect_same_music_mode_changed.rs b/czkawka_gui/src/connect_things/connect_same_music_mode_changed.rs
index 5d5c693..332a531 100644
--- a/czkawka_gui/src/connect_things/connect_same_music_mode_changed.rs
+++ b/czkawka_gui/src/connect_things/connect_same_music_mode_changed.rs
@@ -65,12 +65,12 @@ pub fn connect_same_music_change_mode(gui_data: &GuiData) {
 fn disable_enable_buttons(buttons: &[CheckButton; 7], scales: &[Widget; 4], current_mode: CheckingMethod) {
     match current_mode {
         CheckingMethod::AudioTags => {
-            buttons.iter().for_each(|e| e.show());
-            scales.iter().for_each(|e| e.hide());
+            buttons.iter().for_each(WidgetExt::show);
+            scales.iter().for_each(WidgetExt::hide);
         }
         CheckingMethod::AudioContent => {
-            buttons.iter().for_each(|e| e.hide());
-            scales.iter().for_each(|e| e.show());
+            buttons.iter().for_each(WidgetExt::hide);
+            scales.iter().for_each(WidgetExt::show);
         }
         _ => panic!(),
     }
diff --git a/czkawka_gui/src/help_functions.rs b/czkawka_gui/src/help_functions.rs
index 558f417..a134492 100644
--- a/czkawka_gui/src/help_functions.rs
+++ b/czkawka_gui/src/help_functions.rs
@@ -775,7 +775,7 @@ pub fn scale_set_min_max_values(scale: &Scale, minimum: f64, maximum: f64, curre
     scale.set_fill_level(maximum);
     scale.set_value(current_value);
     if let Some(step) = step {
-        scale.adjustment().set_step_increment(step)
+        scale.adjustment().set_step_increment(step);
     }
 }