diff --git a/skywalking-api/src/main/java/com/ai/cloud/skywalking/buriedpoint/type/DubboBuriedPointType.java b/skywalking-api/src/main/java/com/ai/cloud/skywalking/buriedpoint/type/DubboBuriedPointType.java
index 929ddcacf..b35263304 100644
--- a/skywalking-api/src/main/java/com/ai/cloud/skywalking/buriedpoint/type/DubboBuriedPointType.java
+++ b/skywalking-api/src/main/java/com/ai/cloud/skywalking/buriedpoint/type/DubboBuriedPointType.java
@@ -22,7 +22,7 @@ public class DubboBuriedPointType implements IBuriedPointType {
 
     @Override
     public CallType getCallType() {
-        return CallType.ASYNC;
+        return CallType.SYNC;
     }
 
     private DubboBuriedPointType() {
diff --git a/skywalking-api/src/main/java/com/ai/cloud/skywalking/buriedpoint/type/WEBBuriedPointType.java b/skywalking-api/src/main/java/com/ai/cloud/skywalking/buriedpoint/type/WEBBuriedPointType.java
index ec686c9b8..de2ca006d 100644
--- a/skywalking-api/src/main/java/com/ai/cloud/skywalking/buriedpoint/type/WEBBuriedPointType.java
+++ b/skywalking-api/src/main/java/com/ai/cloud/skywalking/buriedpoint/type/WEBBuriedPointType.java
@@ -22,7 +22,7 @@ public class WEBBuriedPointType implements IBuriedPointType {
 
     @Override
     public CallType getCallType() {
-        return CallType.ASYNC;
+        return CallType.SYNC;
     }
 
     private WEBBuriedPointType() {
diff --git a/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/CallType.java b/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/CallType.java
index 9dc1dcb99..f041a717f 100644
--- a/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/CallType.java
+++ b/skywalking-protocol/src/main/java/com/ai/cloud/skywalking/protocol/CallType.java
@@ -10,7 +10,7 @@ public enum CallType {
         this.value = value;
     }
 
-    public CallType convert(String id) {
+    public static CallType convert(String id) {
         char v = id.charAt(0);
         switch (v) {
             case 'L':