diff --git a/client/src/components/Map/MapTogglePill.tsx b/client/src/components/Map/MapTogglePill.tsx
index f78c125b2..4a05b653e 100644
--- a/client/src/components/Map/MapTogglePill.tsx
+++ b/client/src/components/Map/MapTogglePill.tsx
@@ -6,7 +6,7 @@ import { MAP_CONTROL_SHADOW } from './mapControlShadow'
  * One round on/off control in the frosted shell every map control wears, so a new
  * one lines up with the compass, the layer switcher and the overview toggle.
  */
-export function MapTogglePill({ active, onToggle, label, icon, testId, tooltipPlacement = 'left', badge = 0 }: {
+export function MapTogglePill({ active, onToggle, label, icon, testId, tooltipPlacement = 'left', badge = 0, opensDialog = false }: {
   active: boolean
   onToggle: () => void
   label: string
@@ -16,6 +16,12 @@ export function MapTogglePill({ active, onToggle, label, icon, testId, tooltipPl
   tooltipPlacement?: 'left' | 'right'
   /** A count pinned to the top right corner while above zero (how many filters are on, say). */
   badge?: number
+  /**
+   * The control opens a dialog instead of switching something on and off (the phone
+   * map's places filter): it then announces the dialog, not a pressed state it
+   * does not have. `active` still lights it.
+   */
+  opensDialog?: boolean
 }) {
   return (
     <div style={{
@@ -33,7 +39,8 @@ export function MapTogglePill({ active, onToggle, label, icon, testId, tooltipPl
           type="button"
           onClick={onToggle}
           aria-label={label}
-          aria-pressed={active}
+          aria-pressed={opensDialog ? undefined : active}
+          aria-haspopup={opensDialog ? 'dialog' : undefined}
           data-testid={testId}
           className={active ? 'text-accent' : 'text-content-muted'}
           style={{
diff --git a/client/src/mobile/screens/trip/map/MPlacesFilterPill.tsx b/client/src/mobile/screens/trip/map/MPlacesFilterPill.tsx
index a6f5c41ac..4a57109dd 100644
--- a/client/src/mobile/screens/trip/map/MPlacesFilterPill.tsx
+++ b/client/src/mobile/screens/trip/map/MPlacesFilterPill.tsx
@@ -7,7 +7,8 @@ import { useTranslation } from '../../../../i18n'
 /**
  * The phone map's way into the places filter: a round control in the right-hand
  * stack, lit and badged with how many filters are narrowing the markers. The sheet
- * it opens is the shell's 'placesFilter' sheet.
+ * it opens is the shell's 'placesFilter' sheet, so the button announces a dialog
+ * rather than a pressed state.
  */
 export function MPlacesFilterPill({ onOpen }: { onOpen: () => void }) {
   const { t } = useTranslation()
@@ -23,6 +24,7 @@ export function MPlacesFilterPill({ onOpen }: { onOpen: () => void }) {
       label={label}
       badge={count}
       testId="places-filter-pill"
+      opensDialog
       icon={<SlidersHorizontal size={17} strokeWidth={2} />}
     />
   )
diff --git a/client/tests/unit/mobile/trip/MMapArea.test.tsx b/client/tests/unit/mobile/trip/MMapArea.test.tsx
index ef683de0a..c2afec565 100644
--- a/client/tests/unit/mobile/trip/MMapArea.test.tsx
+++ b/client/tests/unit/mobile/trip/MMapArea.test.tsx
@@ -958,7 +958,9 @@ describe('MMapArea — places filter', () => {
     const { shell } = renderArea({ trTab: 'plan' })
     const pill = screen.getByTestId('places-filter-pill')
     expect(pill).toHaveAccessibleName('Filters')
-    expect(pill).toHaveAttribute('aria-pressed', 'false')
+    // It opens a sheet: a dialog to announce, not an on/off state.
+    expect(pill).toHaveAttribute('aria-haspopup', 'dialog')
+    expect(pill).not.toHaveAttribute('aria-pressed')
     act(() => { pill.click() })
     expect(shell.openSheet).toHaveBeenCalledWith('placesFilter')
   })
@@ -967,7 +969,9 @@ describe('MMapArea — places filter', () => {
     seedStore(useTripStore, { placesFilter: 'unplanned', placesRatingFilter: 4 })
     renderArea({ trTab: 'plan' })
     const pill = screen.getByTestId('places-filter-pill')
-    expect(pill).toHaveAttribute('aria-pressed', 'true')
+    expect(pill).toHaveClass('text-accent')
+    expect(pill).not.toHaveAttribute('aria-pressed')
+    expect(pill).toHaveAttribute('aria-haspopup', 'dialog')
     expect(pill).toHaveAccessibleName('Filters (2)')
     expect(screen.getByText('2')).toHaveAttribute('aria-hidden', 'true')
   })