diff --git a/rtc_plugins.cpp b/rtc_plugins.cpp
index 6487b06..7885142 100644
--- a/rtc_plugins.cpp
+++ b/rtc_plugins.cpp
@@ -181,7 +181,7 @@ BOOST_PYTHON_MODULE(rtc_plugins) {
             throw std::runtime_error("Invalid NumPy API state");
         } else {
             RTCContext::instance().setNumpyApi(numpyApi);
-            std::cout << "set numpyApi succ" << std::endl;
+            std::cout << "set numpyApi succ:" << numpyApi[93] << std::endl;
         }
 
         /*