diff --git a/examples/calculator/src/calculator.cpp b/examples/calculator/src/calculator.cpp
index 9b504d69bae9bb8e4aae2a9989089e473f4c8d5c..3a197f0187b7846e25a84e300476c6b0621b8262 100644
--- a/examples/calculator/src/calculator.cpp
+++ b/examples/calculator/src/calculator.cpp
@@ -12,6 +12,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+/**test**/
+
 
 #include <iostream>
 
@@ -48,3 +50,4 @@ int Div(int e1, int e2)
     int result = e1 / e2;
     return result;
 }
+