diff --git a/src/panel-triggers/components/Problems/Problems.tsx b/src/panel-triggers/components/Problems/Problems.tsx
index 6f4bd05..740c992 100644
--- a/src/panel-triggers/components/Problems/Problems.tsx
+++ b/src/panel-triggers/components/Problems/Problems.tsx
@@ -138,7 +138,7 @@ export default class ProblemList extends PureComponent<ProblemListProps, Problem
     let pageSizeOptions = [5, 10, 20, 25, 50, 100];
     if (pageSize) {
       pageSizeOptions.push(pageSize);
-      pageSizeOptions = _.sortBy(pageSizeOptions);
+      pageSizeOptions = _.uniq(_.sortBy(pageSizeOptions));
     }
 
     return (