diff --git a/kernel_lite/process_posix/src/UidGidTest.h b/kernel_lite/process_posix/src/UidGidTest.h
index 57f9d9a18e40d5ecd3f47fa944f89082594383ae..bcfea1e55d513e7a493594bc588b933f598c790a 100755
--- a/kernel_lite/process_posix/src/UidGidTest.h
+++ b/kernel_lite/process_posix/src/UidGidTest.h
@@ -67,6 +67,11 @@ protected:
         int rt = getgroups(groupNum, groupsArray);
         EXPECT_EQ(rt, groupNum);
     }
+    void SetUp()
+    {
+        LOG("SetUp: set gid");
+        setgid(SHELL_GID);
+    }
     void TearDown()
     {
         LOG("TearDown: reset uid and gid");