diff --git a/conf/tracker.conf b/conf/tracker.conf
index c1fb399..777a018 100644
--- a/conf/tracker.conf
+++ b/conf/tracker.conf
@@ -56,7 +56,8 @@ store_group=group2
 # 0: round robin (default)
 # 1: the first server order by ip address
 # 2: the first server order by priority (the minimal)
-store_server=1
+# Note: if use_trunk_file set to true, must set store_server to 1 or 2
+store_server=0
 
 # which path(means disk or mount point) of the storage server to upload file
 # 0: round robin
diff --git a/tracker/tracker_func.c b/tracker/tracker_func.c
index 1f0b459..c7fe114 100644
--- a/tracker/tracker_func.c
+++ b/tracker/tracker_func.c
@@ -695,6 +695,14 @@ int tracker_load_from_conf_file(const char *filename, \
 
 #endif
 
+        if (g_if_use_trunk_file && g_groups.store_server == FDFS_STORE_SERVER_ROUND_ROBIN)
+        {
+            logInfo("file: "__FILE__", line: %d, "
+                    "set store_server to %d because use_trunk_file is true",
+                    __LINE__, FDFS_STORE_SERVER_FIRST_BY_IP);
+            g_groups.store_server = FDFS_STORE_SERVER_FIRST_BY_IP;
+        }
+
 		logInfo("FastDFS v%d.%02d, base_path=%s, " \
 			"run_by_group=%s, run_by_user=%s, " \
 			"connect_timeout=%ds, "    \