diff --git a/test/cpp/src/StressTestNonBlocking.cpp b/test/cpp/src/StressTestNonBlocking.cpp
old mode 100644
new mode 100755
index 7650d49..0d8bc3a
--- a/test/cpp/src/StressTestNonBlocking.cpp
+++ b/test/cpp/src/StressTestNonBlocking.cpp
@@ -98,7 +98,7 @@
   int64_t echoI64(const int64_t arg) {return arg;}
   void echoString(string& out, const string &arg) {
     if (arg != "hello") {
-      T_ERROR_ABORT("WRONG STRING!!!!");
+      T_ERROR_ABORT("WRONG STRING (%s)!!!!", arg.c_str());
     }
     out = arg;
   }