diff --git a/backend/calculations/scores.py b/backend/calculations/scores.py
index 266d8c3..108408b 100644
--- a/backend/calculations/scores.py
+++ b/backend/calculations/scores.py
@@ -232,7 +232,7 @@ def calculate_health_stability_score(profile_id: str) -> Optional[int]:
 
         # 3. Movement baseline (20%)
         cur.execute("""
-            SELECT duration
+            SELECT duration_min
             FROM activity_log
             WHERE profile_id = %s
               AND date >= CURRENT_DATE - INTERVAL '7 days'
@@ -240,7 +240,7 @@ def calculate_health_stability_score(profile_id: str) -> Optional[int]:
 
         activities = cur.fetchall()
         if activities:
-            total_minutes = sum(a['duration'] for a in activities)
+            total_minutes = sum(a['duration_min'] for a in activities)
             # WHO recommends 150-300 min/week moderate activity
             movement_score = min(100, (total_minutes / 150) * 100)
             components.append(('movement', movement_score, 20))