diff --git a/UnitTest++/TestReporterStdout.cpp b/UnitTest++/TestReporterStdout.cpp
index c519e76..daa1b30 100644
--- a/UnitTest++/TestReporterStdout.cpp
+++ b/UnitTest++/TestReporterStdout.cpp
@@ -13,13 +13,13 @@ namespace UnitTest {
 void TestReporterStdout::ReportFailure(TestDetails const& details, char const* failure)
 {
 #if defined(__APPLE__) || defined(__GNUG__)
-    char const* const errorFormat = "%s:%d: error: Failure in %s: %s\n";
+    char const* const errorFormat = "%s:%d:%d: error: Failure in %s: %s\n";
 #else
     char const* const errorFormat = "%s(%d): error: Failure in %s: %s\n";
 #endif
 
 	using namespace std;
-    printf(errorFormat, details.filename, details.lineNumber, details.testName, failure);
+    fprintf(stderr, errorFormat, details.filename, details.lineNumber, 1, details.testName, failure);
 }
 
 void TestReporterStdout::ReportTestStart(TestDetails const& /*test*/)