diff --git a/test/testrunner.cpp b/test/testrunner.cpp
index 76d37d0d6..64292db5c 100644
--- a/test/testrunner.cpp
+++ b/test/testrunner.cpp
@@ -23,6 +23,11 @@
 
 int main(int argc, char *argv[])
 {
+    // MS Visual C++ memory leak debug tracing
+#if defined(_MSC_VER) && defined(_DEBUG)
+    _CrtSetDbgFlag(_CrtSetDbgFlag(_CRTDBG_REPORT_FLAG) | _CRTDBG_LEAK_CHECK_DF);
+#endif
+
 #ifdef NDEBUG
     try {
 #endif