diff --git a/apps/electron-backend-e2e/src/epg-timeline-interaction.e2e.ts b/apps/electron-backend-e2e/src/epg-timeline-interaction.e2e.ts
index e50145ea3..8b1fc7488 100644
--- a/apps/electron-backend-e2e/src/epg-timeline-interaction.e2e.ts
+++ b/apps/electron-backend-e2e/src/epg-timeline-interaction.e2e.ts
@@ -331,6 +331,7 @@ test('@epg @xtream @electron stacks the programme dialog actions on a phone', as
     ) as {
         WORKSPACE: { SHELL: { RAIL_LIVE: string } };
         EPG: {
+            PREVIOUS_DAY: string;
             PROGRAM_DIALOG: { SHOW_PROGRAM_DETAILS: string };
             TIMELINE: { WATCH_FROM_START: string };
         };
@@ -365,6 +366,15 @@ test('@epg @xtream @electron stacks the programme dialog actions on a phone', as
             .first()
             .click();
         const guide = app.mainWindow.locator('app-epg-list-view');
+        await expect(guide.locator('[data-when="now"]').first()).toBeVisible();
+        // The mock's 30-minute slots run relative to now, so in the first half
+        // hour after UTC midnight today holds only the programme on air: step
+        // back a day for a finished one.
+        if ((await guide.locator('[data-when="past"]').count()) === 0) {
+            await guide
+                .getByRole('button', { name: fr.EPG.PREVIOUS_DAY })
+                .click();
+        }
         await expect(guide.locator('[data-when="past"]').first()).toBeVisible();
 
         // The window cannot shrink below its desktop minimum, so emulate a