diff --git a/app/db_mgr.py b/app/db_mgr.py
index 43b23ef..51e1c1d 100644
--- a/app/db_mgr.py
+++ b/app/db_mgr.py
@@ -85,7 +85,7 @@ def charges_by_project_stacked(project_id, category="service"):
                 .
             sem_n, value_n0, value_n1, ....., value_nn,
     """
-    if category == 'service':
+    if category == 'capacity':
         category_table = 'service'
         sql_req = """
         select c.charge_rate
@@ -93,7 +93,7 @@ def charges_by_project_stacked(project_id, category="service"):
             charge c on c1.id = c.capacity_id and project_id = {} and period_id={}
         order by c1.id
         """
-    elif category == 'capacity':
+    elif category == 'service':
         category_table = 'capacity'
         sql_req = """
         select c.charge_rate
--
libgit2 0.21.2