diff --git a/.config/ags/modules/bar/normal/music.js b/.config/ags/modules/bar/normal/music.js
index d50fa46e..a14efa74 100644
--- a/.config/ags/modules/bar/normal/music.js
+++ b/.config/ags/modules/bar/normal/music.js
@@ -207,9 +207,13 @@ export default () => {
     return EventBox({
         onScrollUp: (self) => switchToRelativeWorkspace(self, -1),
         onScrollDown: (self) => switchToRelativeWorkspace(self, +1),
-        onPrimaryClickRelease: () => showMusicControls.setValue(!showMusicControls.value),
-        onSecondaryClickRelease: () => execAsync(['bash', '-c', 'playerctl next || playerctl position `bc <<< "100 * $(playerctl metadata mpris:length) / 1000000 / 100"` &']).catch(print),
-        onMiddleClickRelease: () => execAsync('playerctl play-pause').catch(print),
+        onPrimaryClick: () => showMusicControls.setValue(!showMusicControls.value),
+        onSecondaryClick: () => execAsync(['bash', '-c', 'playerctl next || playerctl position `bc <<< "100 * $(playerctl metadata mpris:length) / 1000000 / 100"` &']).catch(print),
+        onMiddleClick: () => execAsync('playerctl play-pause').catch(print),
+        setup: (self) => self.on('button-press-event', (self, event) => {
+            if (event.get_button()[1] === 8) // Side button
+                execAsync('playerctl previous').catch(print)
+        }),
         child: Box({
             className: 'spacing-h-4',
             children: [
diff --git a/.config/ags/modules/bar/normal/spaceright.js b/.config/ags/modules/bar/normal/spaceright.js
index 8d63e700..8bca0103 100644
--- a/.config/ags/modules/bar/normal/spaceright.js
+++ b/.config/ags/modules/bar/normal/spaceright.js
@@ -71,8 +71,12 @@ export default () => {
         onHover: () => { barStatusIcons.toggleClassName('bar-statusicons-hover', true) },
         onHoverLost: () => { barStatusIcons.toggleClassName('bar-statusicons-hover', false) },
         onPrimaryClick: () => App.toggleWindow('sideright'),
-        onSecondaryClickRelease: () => execAsync(['bash', '-c', 'playerctl next || playerctl position `bc <<< "100 * $(playerctl metadata mpris:length) / 1000000 / 100"` &']).catch(print),
-        onMiddleClickRelease: () => execAsync('playerctl play-pause').catch(print),
+        onSecondaryClick: () => execAsync(['bash', '-c', 'playerctl next || playerctl position `bc <<< "100 * $(playerctl metadata mpris:length) / 1000000 / 100"` &']).catch(print),
+        onMiddleClick: () => execAsync('playerctl play-pause').catch(print),
+        setup: (self) => self.on('button-press-event', (self, event) => {
+            if (event.get_button()[1] === 8)
+                execAsync('playerctl previous').catch(print)
+        }),
         child: Widget.Box({
             homogeneous: false,
             children: [