diff --git a/samples/ml/openvino/Makefile b/samples/ml/openvino/Makefile
index 1baf819ea..a51e93b33 100644
--- a/samples/ml/openvino/Makefile
+++ b/samples/ml/openvino/Makefile
@@ -19,6 +19,8 @@ else
 SGXLKL_ENV=
 endif
 
+SGXLKL_ENV += SGXLKL_ETHREADS=4
+
 SGXLKL_DISK_TOOL=${SGXLKL_ROOT}/tools/sgx-lkl-disk
 SGXLKL_GDB=${SGXLKL_ROOT}/tools/gdb/sgx-lkl-gdb