diff --git a/backend/importers/base.py b/backend/importers/base.py
index 1627c23..bf5aa51 100644
--- a/backend/importers/base.py
+++ b/backend/importers/base.py
@@ -251,9 +251,13 @@ class ImporterBase(ABC):
             venue = self.session.get(Venue, venue_id)
             venue_name = venue.name if venue else "unknown"
             
+            # Include vertical slug for cross-band uniqueness (same venue/date possible)
+            base_slug = generate_show_slug(date.strftime("%Y-%m-%d"), venue_name)
+            show_slug = f"{vertical.slug}-{base_slug}"
+            
             show = Show(
                 date=date,
-                slug=generate_show_slug(date.strftime("%Y-%m-%d"), venue_name),
+                slug=show_slug,
                 vertical_id=vertical.id,
                 venue_id=venue_id,
                 tour_id=tour_id,