diff --git a/skywalking-sniffer/skywalking-api/src/main/java/com/a/eye/skywalking/trace/ContextCarrier.java b/skywalking-sniffer/skywalking-api/src/main/java/com/a/eye/skywalking/context/ContextCarrier.java
similarity index 93%
rename from skywalking-sniffer/skywalking-api/src/main/java/com/a/eye/skywalking/trace/ContextCarrier.java
rename to skywalking-sniffer/skywalking-api/src/main/java/com/a/eye/skywalking/context/ContextCarrier.java
index d9a45f819..85ccb13f5 100644
--- a/skywalking-sniffer/skywalking-api/src/main/java/com/a/eye/skywalking/trace/ContextCarrier.java
+++ b/skywalking-sniffer/skywalking-api/src/main/java/com/a/eye/skywalking/context/ContextCarrier.java
@@ -1,5 +1,6 @@
-package com.a.eye.skywalking.trace;
+package com.a.eye.skywalking.context;
 
+import com.a.eye.skywalking.trace.TraceSegmentRef;
 import com.a.eye.skywalking.util.StringUtil;
 import java.io.Serializable;
 
diff --git a/skywalking-sniffer/skywalking-api/src/main/java/com/a/eye/skywalking/trace/ContextManager.java b/skywalking-sniffer/skywalking-api/src/main/java/com/a/eye/skywalking/context/ContextManager.java
similarity index 90%
rename from skywalking-sniffer/skywalking-api/src/main/java/com/a/eye/skywalking/trace/ContextManager.java
rename to skywalking-sniffer/skywalking-api/src/main/java/com/a/eye/skywalking/context/ContextManager.java
index 46f07d391..2fa0f76b2 100644
--- a/skywalking-sniffer/skywalking-api/src/main/java/com/a/eye/skywalking/trace/ContextManager.java
+++ b/skywalking-sniffer/skywalking-api/src/main/java/com/a/eye/skywalking/context/ContextManager.java
@@ -1,4 +1,6 @@
-package com.a.eye.skywalking.trace;
+package com.a.eye.skywalking.context;
+
+import com.a.eye.skywalking.trace.TraceSegment;
 
 /**
  * {@link TracerContext} controls the whole context of {@link TraceSegment}. Any {@link TraceSegment} relates to
diff --git a/skywalking-sniffer/skywalking-api/src/main/java/com/a/eye/skywalking/trace/TracerContext.java b/skywalking-sniffer/skywalking-api/src/main/java/com/a/eye/skywalking/context/TracerContext.java
similarity index 96%
rename from skywalking-sniffer/skywalking-api/src/main/java/com/a/eye/skywalking/trace/TracerContext.java
rename to skywalking-sniffer/skywalking-api/src/main/java/com/a/eye/skywalking/context/TracerContext.java
index 1569cd1c0..1317c4e73 100644
--- a/skywalking-sniffer/skywalking-api/src/main/java/com/a/eye/skywalking/trace/TracerContext.java
+++ b/skywalking-sniffer/skywalking-api/src/main/java/com/a/eye/skywalking/context/TracerContext.java
@@ -1,5 +1,7 @@
-package com.a.eye.skywalking.trace;
+package com.a.eye.skywalking.context;
 
+import com.a.eye.skywalking.trace.Span;
+import com.a.eye.skywalking.trace.TraceSegment;
 import com.a.eye.skywalking.util.TraceIdGenerator;
 import java.util.ArrayList;
 import java.util.List;