diff --git a/src/components/schedule/table/table.component.ts b/src/components/schedule/table/table.component.ts
index 9c85570..f1df375 100644
--- a/src/components/schedule/table/table.component.ts
+++ b/src/components/schedule/table/table.component.ts
@@ -73,9 +73,12 @@ export class TableComponent implements OnChanges {
           x.dayOfWeek === k &&
           x.isEven === (this.currentWeek % 2 === 0) &&
           (
-            (x.isExcludedWeeks && (!x.weeks || !x.weeks.includes(this.currentWeek))) ||
-            (!x.isExcludedWeeks && (!x.weeks || x.weeks.includes(this.currentWeek)))
-          ));
+            x.isExcludedWeeks === undefined ||
+            x.weeks === undefined ||
+            (x.isExcludedWeeks && (!x.weeks.includes(this.currentWeek))) ||
+            (!x.isExcludedWeeks && (x.weeks.includes(this.currentWeek)))
+          )
+        );
       }
 
       tableData.push(convertedData);