diff --git a/src/Enclave.edl b/src/Enclave.edl
index 4886176b..eed15d97 100644
--- a/src/Enclave.edl
+++ b/src/Enclave.edl
@@ -5,6 +5,7 @@ enclave {
     from "sgx_tstd.edl" import *;
     from "sgx_tprotected_fs.edl" import *;
     from "sgx_net.edl" import *;
+    from "sgx_occlum_utils.edl" import *;
 
     include "sgx_quote.h"
     include "occlum_edl_types.h"