diff --git a/paddle/scripts/paddle_build.sh b/paddle/scripts/paddle_build.sh
index 7042fa3dec6614b838b3a8a454f43a9eddd019dd..e29fd6549ee02ba627c0603ca2398095578bacca 100755
--- a/paddle/scripts/paddle_build.sh
+++ b/paddle/scripts/paddle_build.sh
@@ -2857,7 +2857,6 @@ function parallel_test() {
     cd ${PADDLE_ROOT}/build
     pip install hypothesis
     pip install ${PADDLE_ROOT}/build/python/dist/*whl
-    cp ${PADDLE_ROOT}/build/python/paddle/fluid/tests/unittests/op_test.py ${PADDLE_ROOT}/build/python
     cp ${PADDLE_ROOT}/build/python/paddle/fluid/tests/unittests/testsuite.py ${PADDLE_ROOT}/build/python
     cp -r ${PADDLE_ROOT}/build/python/paddle/fluid/tests/unittests/white_list ${PADDLE_ROOT}/build/python
     ut_total_startTime_s=`date +%s`
diff --git a/python/paddle/fluid/tests/unittests/__init__.py b/python/paddle/fluid/tests/unittests/__init__.py
index 126cbeb4938870659f09b1412125e6d0c868093e..3a0e2ace56fec514b211ea897f8affe694c1ee22 100644
--- a/python/paddle/fluid/tests/unittests/__init__.py
+++ b/python/paddle/fluid/tests/unittests/__init__.py
@@ -18,9 +18,8 @@
 
 import os
 
-if os.name == 'nt':
-    import sys
+import sys
 
-    dirname, filename = os.path.split(os.path.abspath(__file__))
-    sys.path.insert(0, dirname)
-    print(sys.path)
+dirname, filename = os.path.split(os.path.abspath(__file__))
+sys.path.insert(0, dirname)
+print(sys.path)