diff --git a/apm-application-toolkit/apm-toolkit-micrometer-registry/src/main/java/org/apache/skywalking/apm/meter/micrometer/SkywalkingMeterRegistry.java b/apm-application-toolkit/apm-toolkit-micrometer-registry/src/main/java/org/apache/skywalking/apm/meter/micrometer/SkywalkingMeterRegistry.java
index 5ece4f8b8..5919f67f1 100644
--- a/apm-application-toolkit/apm-toolkit-micrometer-registry/src/main/java/org/apache/skywalking/apm/meter/micrometer/SkywalkingMeterRegistry.java
+++ b/apm-application-toolkit/apm-toolkit-micrometer-registry/src/main/java/org/apache/skywalking/apm/meter/micrometer/SkywalkingMeterRegistry.java
@@ -126,6 +126,8 @@ public class SkywalkingMeterRegistry extends MeterRegistry {
                 case DURATION:
                     meterName = baseName + "_duration_sum";
                     break;
+                default:
+                    break;
             }
 
             if (isCounter) {