diff --git a/static/app/views/ddm/chart/useMetricChartSamples.tsx b/static/app/views/ddm/chart/useMetricChartSamples.tsx
index 9d4a820afb0581..75215cca5e6a29 100644
--- a/static/app/views/ddm/chart/useMetricChartSamples.tsx
+++ b/static/app/views/ddm/chart/useMetricChartSamples.tsx
@@ -189,7 +189,7 @@ export function useMetricChartSamples({
                 value: yPosition,
               },
             ],
-            z: timeseries.length + 1,
+            z: baseProps.series.length + 1,
           };
         });
       }
@@ -244,7 +244,6 @@ export function useMetricChartSamples({
       valueRect,
       xAxis,
       yAxis,
-      timeseries.length,
     ]
   );