diff --git a/packages/app/src/components/session/session-header.tsx b/packages/app/src/components/session/session-header.tsx
index fcba47004be..5f1597777c5 100644
--- a/packages/app/src/components/session/session-header.tsx
+++ b/packages/app/src/components/session/session-header.tsx
@@ -322,57 +322,60 @@ export function SessionHeader() {
                     }
                   >
                     <div class="flex items-center">
-                      <Button
-                        variant="ghost"
-                        class="rounded-sm h-[24px] py-1.5 pr-3 pl-2 gap-2 border-none shadow-none rounded-r-none"
-                        onClick={() => openDir(current().id)}
-                        aria-label={language.t("session.header.open.ariaLabel", { app: current().label })}
-                      >
-                        <AppIcon id={current().icon} class="size-5" />
-                        <span class="text-12-regular text-text-strong">
-                          {language.t("session.header.open.action", { app: current().label })}
-                        </span>
-                      </Button>
-                      <DropdownMenu>
-                        <DropdownMenu.Trigger
-                          as={IconButton}
-                          icon="chevron-down"
+                      <div class="flex items-center rounded-md border border-border-base bg-surface-panel overflow-hidden">
+                        <Button
                           variant="ghost"
-                          class="rounded-sm h-[24px] w-auto px-1.5 border-none shadow-none rounded-l-none data-[expanded]:bg-surface-raised-base-active"
-                          aria-label={language.t("session.header.open.menu")}
-                        />
-                        <DropdownMenu.Portal>
-                          <DropdownMenu.Content placement="bottom-end" gutter={6}>
-                            <DropdownMenu.Group>
-                              <DropdownMenu.GroupLabel>{language.t("session.header.openIn")}</DropdownMenu.GroupLabel>
-                              <DropdownMenu.RadioGroup
-                                value={prefs.app}
-                                onChange={(value) => {
-                                  if (!OPEN_APPS.includes(value as OpenApp)) return
-                                  setPrefs("app", value as OpenApp)
-                                }}
-                              >
-                                {options().map((o) => (
-                                  <DropdownMenu.RadioItem value={o.id} onSelect={() => openDir(o.id)}>
-                                    <AppIcon id={o.icon} class="size-5" />
-                                    <DropdownMenu.ItemLabel>{o.label}</DropdownMenu.ItemLabel>
-                                    <DropdownMenu.ItemIndicator>
-                                      <Icon name="check-small" size="small" class="text-icon-weak" />
-                                    </DropdownMenu.ItemIndicator>
-                                  </DropdownMenu.RadioItem>
-                                ))}
-                              </DropdownMenu.RadioGroup>
-                            </DropdownMenu.Group>
-                            <DropdownMenu.Separator />
-                            <DropdownMenu.Item onSelect={copyPath}>
-                              <Icon name="copy" size="small" class="text-icon-weak" />
-                              <DropdownMenu.ItemLabel>
-                                {language.t("session.header.open.copyPath")}
-                              </DropdownMenu.ItemLabel>
-                            </DropdownMenu.Item>
-                          </DropdownMenu.Content>
-                        </DropdownMenu.Portal>
-                      </DropdownMenu>
+                          class="rounded-none h-[28px] py-1.5 pr-4 pl-3 gap-2 border-none shadow-none"
+                          onClick={() => openDir(current().id)}
+                          aria-label={language.t("session.header.open.ariaLabel", { app: current().label })}
+                        >
+                          <AppIcon id={current().icon} class="size-5" />
+                          <span class="text-12-regular text-text-strong">
+                            {language.t("session.header.open.action", { app: current().label })}
+                          </span>
+                        </Button>
+                        <div class="self-stretch w-px bg-border-base/70" />
+                        <DropdownMenu>
+                          <DropdownMenu.Trigger
+                            as={IconButton}
+                            icon="chevron-down"
+                            variant="ghost"
+                            class="rounded-none h-[28px] w-auto px-2 border-none shadow-none data-[expanded]:bg-surface-raised-base-active"
+                            aria-label={language.t("session.header.open.menu")}
+                          />
+                          <DropdownMenu.Portal>
+                            <DropdownMenu.Content placement="bottom-end" gutter={6}>
+                              <DropdownMenu.Group>
+                                <DropdownMenu.GroupLabel>{language.t("session.header.openIn")}</DropdownMenu.GroupLabel>
+                                <DropdownMenu.RadioGroup
+                                  value={prefs.app}
+                                  onChange={(value) => {
+                                    if (!OPEN_APPS.includes(value as OpenApp)) return
+                                    setPrefs("app", value as OpenApp)
+                                  }}
+                                >
+                                  {options().map((o) => (
+                                    <DropdownMenu.RadioItem value={o.id} onSelect={() => openDir(o.id)}>
+                                      <AppIcon id={o.icon} class="size-5" />
+                                      <DropdownMenu.ItemLabel>{o.label}</DropdownMenu.ItemLabel>
+                                      <DropdownMenu.ItemIndicator>
+                                        <Icon name="check-small" size="small" class="text-icon-weak" />
+                                      </DropdownMenu.ItemIndicator>
+                                    </DropdownMenu.RadioItem>
+                                  ))}
+                                </DropdownMenu.RadioGroup>
+                              </DropdownMenu.Group>
+                              <DropdownMenu.Separator />
+                              <DropdownMenu.Item onSelect={copyPath}>
+                                <Icon name="copy" size="small" class="text-icon-weak" />
+                                <DropdownMenu.ItemLabel>
+                                  {language.t("session.header.open.copyPath")}
+                                </DropdownMenu.ItemLabel>
+                              </DropdownMenu.Item>
+                            </DropdownMenu.Content>
+                          </DropdownMenu.Portal>
+                        </DropdownMenu>
+                      </div>
                     </div>
                   </Show>
                 </div>