remove using std

Change-Id: I268a92200a397f4fba0458f951f0a10b25ac0836
diff --git a/tests/unit-tests/ca-module.t.cpp b/tests/unit-tests/ca-module.t.cpp
index f429b2f..76098a0 100644
--- a/tests/unit-tests/ca-module.t.cpp
+++ b/tests/unit-tests/ca-module.t.cpp
@@ -73,7 +73,7 @@
       count++;
       auto block = response.getContent();
       block.parse();
-      infoInterest = make_shared<Interest>(Name(block.get(tlv::Name)).appendSegment(0));
+      infoInterest =std::make_shared<Interest>(Name(block.get(tlv::Name)).appendSegment(0));
       infoInterest->setCanBePrefix(false);
     }
     else {