diff --git a/parser/common/data_op_parser.cc b/parser/common/data_op_parser.cc
index 1078b0e..f6bb9e9 100644
--- a/parser/common/data_op_parser.cc
+++ b/parser/common/data_op_parser.cc
@@ -23,7 +23,6 @@
 #include "graph/utils/type_utils.h"
 #include "omg/omg.h"
 
-using namespace cce;
 namespace {
 const int kDataMemAlignSize = 32;
 const int kTwoTimesAlign = 2;