diff --git a/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/commands/executor/ProfileTaskCommandExecutor.java b/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/commands/executor/ProfileTaskCommandExecutor.java
index f2838d6df..e1bddc9c3 100644
--- a/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/commands/executor/ProfileTaskCommandExecutor.java
+++ b/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/commands/executor/ProfileTaskCommandExecutor.java
@@ -38,7 +38,7 @@ public class ProfileTaskCommandExecutor implements CommandExecutor {
         // build profile task
         final ProfileTask profileTask = new ProfileTask();
         profileTask.setTaskId(profileTaskCommand.getTaskId());
-        profileTask.setFistSpanOPName(profileTaskCommand.getEndpointName());
+        profileTask.setFirstSpanOPName(profileTaskCommand.getEndpointName());
         profileTask.setDuration(profileTaskCommand.getDuration());
         profileTask.setMinDurationThreshold(profileTaskCommand.getMinDurationThreshold());
         profileTask.setThreadDumpPeriod(profileTaskCommand.getDumpPeriod());
diff --git a/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/profile/ProfileTask.java b/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/profile/ProfileTask.java
index c09381d6d..a63d0a234 100644
--- a/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/profile/ProfileTask.java
+++ b/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/profile/ProfileTask.java
@@ -29,7 +29,7 @@ public class ProfileTask {
     private String taskId;
 
     // monitor first span operation name
-    private String fistSpanOPName;
+    private String firstSpanOPName;
 
     // task duration (minute)
     private int duration;
@@ -49,12 +49,12 @@ public class ProfileTask {
     // task create time
     private long createTime;
 
-    public String getFistSpanOPName() {
-        return fistSpanOPName;
+    public String getFirstSpanOPName() {
+        return firstSpanOPName;
     }
 
-    public void setFistSpanOPName(String fistSpanOPName) {
-        this.fistSpanOPName = fistSpanOPName;
+    public void setFirstSpanOPName(String firstSpanOPName) {
+        this.firstSpanOPName = firstSpanOPName;
     }
 
     public int getDuration() {
@@ -121,11 +121,11 @@ public class ProfileTask {
             return false;
         ProfileTask that = (ProfileTask) o;
         return duration == that.duration && minDurationThreshold == that.minDurationThreshold && threadDumpPeriod == that.threadDumpPeriod && maxSamplingCount == that.maxSamplingCount && startTime == that.startTime && createTime == that.createTime && taskId
-            .equals(that.taskId) && fistSpanOPName.equals(that.fistSpanOPName);
+            .equals(that.taskId) && firstSpanOPName.equals(that.firstSpanOPName);
     }
 
     @Override
     public int hashCode() {
-        return Objects.hash(taskId, fistSpanOPName, duration, minDurationThreshold, threadDumpPeriod, maxSamplingCount, startTime, createTime);
+        return Objects.hash(taskId, firstSpanOPName, duration, minDurationThreshold, threadDumpPeriod, maxSamplingCount, startTime, createTime);
     }
 }
diff --git a/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/profile/ProfileTaskExecutionContext.java b/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/profile/ProfileTaskExecutionContext.java
index cf18ccbf1..7cee79704 100644
--- a/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/profile/ProfileTaskExecutionContext.java
+++ b/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/profile/ProfileTaskExecutionContext.java
@@ -82,7 +82,7 @@ public class ProfileTaskExecutionContext {
         }
 
         // check first operation name matches
-        if (!Objects.equals(task.getFistSpanOPName(), firstSpanOPName)) {
+        if (!Objects.equals(task.getFirstSpanOPName(), firstSpanOPName)) {
             return ProfileStatusReference.createWithNone();
         }
 
diff --git a/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/profile/ProfileTaskExecutionService.java b/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/profile/ProfileTaskExecutionService.java
index fc7ea2faf..f79ccb07c 100644
--- a/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/profile/ProfileTaskExecutionService.java
+++ b/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/profile/ProfileTaskExecutionService.java
@@ -186,7 +186,7 @@ public class ProfileTaskExecutionService implements BootService, TracingThreadLi
      */
     private CheckResult checkProfileTaskSuccess(ProfileTask task) {
         // endpoint name
-        if (StringUtil.isEmpty(task.getFistSpanOPName())) {
+        if (StringUtil.isEmpty(task.getFirstSpanOPName())) {
             return new CheckResult(false, "endpoint name cannot be empty");
         }
 
@@ -234,7 +234,7 @@ public class ProfileTaskExecutionService implements BootService, TracingThreadLi
                 return new CheckResult(
                     false,
                     "there already have processing task in time range, could not add a new task again. processing task monitor endpoint name: "
-                        + profileTask.getFistSpanOPName()
+                        + profileTask.getFirstSpanOPName()
                 );
             }
         }