diff --git a/backend/routers/performances.py b/backend/routers/performances.py
index 8c96938..e267a9f 100644
--- a/backend/routers/performances.py
+++ b/backend/routers/performances.py
@@ -39,6 +39,8 @@ def read_performance(slug: str, session: Session = Depends(get_session)):
             
     prev_slug = None
     next_slug = None
+    prev_id = None
+    next_id = None
     gap = 0
     times_played = current_index + 1 # 1-based count
     
diff --git a/backend/schemas.py b/backend/schemas.py
index 290be22..251e79e 100644
--- a/backend/schemas.py
+++ b/backend/schemas.py
@@ -118,7 +118,9 @@ class SongReadWithStats(SongRead):
 class PerformanceDetailRead(PerformanceRead):
     show: Optional["ShowRead"] = None
     previous_performance_id: Optional[int] = None
+    previous_performance_slug: Optional[str] = None
     next_performance_id: Optional[int] = None
+    next_performance_slug: Optional[str] = None
     gap: Optional[int] = 0
     times_played: Optional[int] = 0
     other_performances: List[PerformanceReadWithShow] = []