diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/ServerManager.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/ServerManager.java
index 72f7dc437f8..496f0f907cc 100644
--- a/hbase-server/src/main/java/org/apache/hadoop/hbase/master/ServerManager.java
+++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/master/ServerManager.java
@@ -421,9 +421,7 @@ public class ServerManager {
    */
   public Map<ServerName, ServerLoad> getOnlineServers() {
     // Presumption is that iterating the returned Map is OK.
-    synchronized (this.onlineServers) {
-      return Collections.unmodifiableMap(this.onlineServers);
-    }
+    return Collections.unmodifiableMap(this.onlineServers);
   }