diff --git a/pulsar-functions/worker/src/main/java/org/apache/pulsar/functions/worker/WorkerStatsManager.java b/pulsar-functions/worker/src/main/java/org/apache/pulsar/functions/worker/WorkerStatsManager.java
index c9b7c1da8db44..4c7d28cc70d84 100644
--- a/pulsar-functions/worker/src/main/java/org/apache/pulsar/functions/worker/WorkerStatsManager.java
+++ b/pulsar-functions/worker/src/main/java/org/apache/pulsar/functions/worker/WorkerStatsManager.java
@@ -329,7 +329,8 @@ private void writeMetric(String metricName, long value, StringWriter stream) {
     stream.write("# TYPE ");
     stream.write(PULSAR_FUNCTION_WORKER_METRICS_PREFIX);
     stream.write(metricName);
-    stream.write(" gauge \n");
+    stream.write(" gauge");
+    stream.write("\n");
 
     stream.write(PULSAR_FUNCTION_WORKER_METRICS_PREFIX);
     stream.write(metricName);