diff --git a/spring-cloud-stream-binder-kafka-streams/src/main/java/org/springframework/cloud/stream/binder/kafka/streams/KafkaStreamsBinderMetrics.java b/spring-cloud-stream-binder-kafka-streams/src/main/java/org/springframework/cloud/stream/binder/kafka/streams/KafkaStreamsBinderMetrics.java
index 899c595e9..a5f927d0d 100644
--- a/spring-cloud-stream-binder-kafka-streams/src/main/java/org/springframework/cloud/stream/binder/kafka/streams/KafkaStreamsBinderMetrics.java
+++ b/spring-cloud-stream-binder-kafka-streams/src/main/java/org/springframework/cloud/stream/binder/kafka/streams/KafkaStreamsBinderMetrics.java
@@ -89,7 +89,7 @@ public class KafkaStreamsBinderMetrics {
 				ToDoubleFunction toDoubleFunction(Metric metric) {
 					return (o) -> {
 						if (metric.metricValue() instanceof Number) {
-							return (Double) metric.metricValue();
+							return ((Number) metric.metricValue()).doubleValue();
 						}
 						else {
 							return 0.0;
diff --git a/spring-cloud-stream-binder-kafka-streams/src/test/java/org/springframework/cloud/stream/binder/kafka/streams/function/KafkaStreamsBinderWordCountFunctionTests.java b/spring-cloud-stream-binder-kafka-streams/src/test/java/org/springframework/cloud/stream/binder/kafka/streams/function/KafkaStreamsBinderWordCountFunctionTests.java
index da4950926..cf26e3b4a 100644
--- a/spring-cloud-stream-binder-kafka-streams/src/test/java/org/springframework/cloud/stream/binder/kafka/streams/function/KafkaStreamsBinderWordCountFunctionTests.java
+++ b/spring-cloud-stream-binder-kafka-streams/src/test/java/org/springframework/cloud/stream/binder/kafka/streams/function/KafkaStreamsBinderWordCountFunctionTests.java
@@ -106,6 +106,7 @@ public class KafkaStreamsBinderWordCountFunctionTests {
 			final MeterRegistry meterRegistry = context.getBean(MeterRegistry.class);
 			Thread.sleep(100);
 			assertThat(meterRegistry.get("stream.metrics.commit.total").gauge().value()).isEqualTo(1.0);
+			assertThat(meterRegistry.get("app.info.start.time.ms").gauge().value()).isNotNaN();
 			Assert.isTrue(LATCH.await(5, TimeUnit.SECONDS), "Failed to call customizers");
 		}
 	}