diff --git a/web/src/components/HidConfigPopover.vue b/web/src/components/HidConfigPopover.vue
index ec5924be..40905e48 100644
--- a/web/src/components/HidConfigPopover.vue
+++ b/web/src/components/HidConfigPopover.vue
@@ -368,7 +368,7 @@ watch(() => props.open, (isOpen) => {
               :model-value="String(baudrate)"
               @update:model-value="handleBaudrateChange"
             >
-              <SelectTrigger size="sm" class="text-xs">
+              <SelectTrigger size="sm" class="w-full text-xs">
                 <SelectValue />
               </SelectTrigger>
               <SelectContent>
diff --git a/web/src/views/SetupView.vue b/web/src/views/SetupView.vue
index 33c0bf2c..71935b47 100644
--- a/web/src/views/SetupView.vue
+++ b/web/src/views/SetupView.vue
@@ -816,7 +816,7 @@ const stepIcons = [User, Video, Keyboard, Puzzle]
                   {{ t('setup.encoderHint') }}
                 </p>
                 <Select v-model="encoderBackend">
-                  <SelectTrigger>
+                  <SelectTrigger class="w-full">
                     <SelectValue />
                   </SelectTrigger>
                   <SelectContent>
@@ -838,7 +838,7 @@ const stepIcons = [User, Video, Keyboard, Puzzle]
             <div class="space-y-2">
               <Label for="hidBackend">{{ t('setup.hidBackend') }}</Label>
               <Select v-model="hidBackend">
-                <SelectTrigger>
+                <SelectTrigger class="w-full">
                   <SelectValue />
                 </SelectTrigger>
                 <SelectContent>
@@ -873,7 +873,7 @@ const stepIcons = [User, Video, Keyboard, Puzzle]
               <div class="space-y-2">
                 <Label for="ch9329Baudrate">{{ t('setup.baudRate') }}</Label>
                 <Select :model-value="ch9329Baudrate" @update:model-value="value => ch9329Baudrate = Number(value)">
-                  <SelectTrigger>
+                  <SelectTrigger class="w-full">
                     <SelectValue />
                   </SelectTrigger>
                   <SelectContent>