diff --git a/interfaces/innerkits/samgr_proxy/include/system_ability_definition.h b/interfaces/innerkits/samgr_proxy/include/system_ability_definition.h
index 5cfe262aefbfc42108024527c261ef9e40ba9b43..856affc5f56c87521a7338c26705d0b92e907f22 100644
--- a/interfaces/innerkits/samgr_proxy/include/system_ability_definition.h
+++ b/interfaces/innerkits/samgr_proxy/include/system_ability_definition.h
@@ -328,6 +328,7 @@ enum {
     SUBSYS_WEBVIEW_SYS_UPDATE_SERVICE_ID             = 8350,
     COMM_WEARABLE_DISTRIBUTED_NET_ABILITY_ID         = 8400,
     SELECTION_FWK_SA_ID                              = 8500,
+    MECH_BODY_SA_ID                                  = 8550,
     // reserved for vendor
     VENDOR_SYS_ABILITY_ID_BEGIN                      = 0x00010000,  // 65536
     VENDOR_SYS_ABILITY_ID_END                        = 0x00020000,  // 131072