diff --git a/static/charts.html b/static/charts.html
index da6c605..c959452 100644
--- a/static/charts.html
+++ b/static/charts.html
@@ -97,7 +97,7 @@
                     categories = new Set()
                     $.map(positions, function (position) {
                         $.map(result[rank][position], function (_, frame){
-                            categories.add(frame)
+                            categories.add(parseInt(frame))
                         })
                     })
                     categories = Array.from(categories).sort()
@@ -118,9 +118,9 @@
                             },
                             data: $.map(categories, function (frame) {
                                 if (result[rank][position].hasOwnProperty(frame)) {
-                                    return [[frame, (parseFloat(result[rank][position][frame].wp) * 100)]]
+                                    return [[parseInt(frame), (parseFloat(result[rank][position][frame].wp) * 100)]]
                                 } else {
-                                    return [[frame, null]]
+                                    return [[parseInt(frame), null]]
                                 }
                             })
                         }, {
@@ -134,9 +134,9 @@
                             },
                             data: $.map(categories, function (frame) {
                                 if (result[rank][position].hasOwnProperty(frame)) {
-                                    return [[frame, parseFloat(result[rank][position][frame].adp)]]
+                                    return [[parseInt(frame), parseFloat(result[rank][position][frame].adp)]]
                                 } else {
-                                    return [[frame, null]]
+                                    return [[parseInt(frame), null]]
                                 }
                             })
                         }]