diff --git a/app/db_mgr.py b/app/db_mgr.py
index e148152..bd1fa95 100644
--- a/app/db_mgr.py
+++ b/app/db_mgr.py
@@ -43,13 +43,19 @@ def projects():
     # Build the table row by row
     for _pc in projects_charges:
         p_id = _pc[0]
-        p = Project.query.get(int(p_id))
+        project = Project.query.get(int(p_id))
         # adding 2 first columns: id, name
-        project_row = [p.id, p.name]
+        project_row = [project.id, project.name]
         # then labels, many for each category
         for category in categories:
-            # we build the labels.name list of the intersection of that category labels with projects labels
-            labels = [_cl.label.name for _cl in category.labels if _cl.label in [_pl.label for _pl in p.labels]]
+            # we build the labels.name list of the intersection of current category's labels with project's labels
+            # Comprehensive shortcut is:
+            # labels = [_cl.label.name for _cl in category.labels if _cl.label in [_pl.label for _pl in project.labels]]
+            #
+            category_labels = [_cl.label for _cl in category.labels]
+            project_labels = [_pl.label for _pl in project.labels]
+            intersection_labels = list(set.intersection(set(project_labels), set(category_labels)))
+            labels = [label.name for label in intersection_labels]
             project_row.append(labels)
         # then add total charge
         project_row.append(_pc[1])
--
libgit2 0.21.2