use OpenCV with Clion IDE on Windows

I'm actually looking for a way to create apps with OpenCV with Clion from JetBrains.

I've installed OpenCV with Choco, so I have all the stuff in C:\opencv

this is my projet with Clion

CMakeLists.txt:

cmake_minimum_required(VERSION 3.3)
project(test)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
include_directories("C:\\opencv\\build\\include\\")

FIND_PACKAGE( OpenCV REQUIRED core highgui imgproc)
set(OpenCV_FOUND TRUE)

set(SOURCE_FILES main.cpp)
add_executable(prog ${SOURCE_FILES})

and the main.cpp:

#include <opencv2/opencv.hpp>

int main() {

    cv::Mat img = cv::imread("./test.jpg", -1);
    cv::imshow("Mon image", img);
    cv::waitKey(0);
    return 0;
}

and the response to build is :

undefined reference to `cv::imread(cv::String const&, int)'

and undefined errors for all OpenCV functions

Do you know why it doesn't works?