diff --git a/xxg_integration_env/group_vars/all.yml b/xxg_integration_env/group_vars/all.yml
index 801193e..dec0595 100644
--- a/xxg_integration_env/group_vars/all.yml
+++ b/xxg_integration_env/group_vars/all.yml
@@ -21,7 +21,7 @@ wangw_global:
         redis_index: 0
     
     wiregraft:
-        identification_by_which_device:"enp6s0"
+        identification_by_which_device: "enp6s0"
         toroad_server_ip: "192.168.40.134"
         
     rpm_files:
diff --git a/xxg_test_env/group_vars/all.yml b/xxg_test_env/group_vars/all.yml
index 81fe3ef..482063f 100644
--- a/xxg_test_env/group_vars/all.yml
+++ b/xxg_test_env/group_vars/all.yml
@@ -21,7 +21,7 @@ wangw_global:
         redis_index: 0
     
     wiregraft:
-        identification_by_which_device:"enp8s0"
+        identification_by_which_device: "enp8s0"
         toroad_server_ip: "192.168.40.133"
         
     rpm_files:
@@ -29,4 +29,4 @@ wangw_global:
         wire_graft_rpm_file: "libwire_graft-1.1.4.ab9badd-2.el7.x86_64.rpm"
         wire_graft_devel_rpm_file: "libwire_graft-devel-1.1.4.ab9badd-2.el7.x86_64.rpm"
         toroad_rpm_file: "toroad-1.1.3.466cd11-2.el7.x86_64.rpm"
-        
\ No newline at end of file
+