diff --git a/packages/sdk-metrics/src/state/MetricCollector.ts b/packages/sdk-metrics/src/state/MetricCollector.ts
index ab9fdf07918..3b52a3e4d56 100644
--- a/packages/sdk-metrics/src/state/MetricCollector.ts
+++ b/packages/sdk-metrics/src/state/MetricCollector.ts
@@ -96,7 +96,7 @@ export class MetricCollector implements MetricProducer {
    * collector.
    */
   selectCardinalityLimit(instrumentType: InstrumentType): number {
-    return this._metricReader.selectCardinalityLimit.?(instrumentType) ?? 2000;
+    return this._metricReader.selectCardinalityLimit?.(instrumentType) ?? 2000;
   }
 }