diff --git a/Source/CTest/cmCTestLaunch.cxx b/Source/CTest/cmCTestLaunch.cxx
index b65d23b8f..77c5d5785 100644
--- a/Source/CTest/cmCTestLaunch.cxx
+++ b/Source/CTest/cmCTestLaunch.cxx
@@ -21,6 +21,12 @@
 #include <cmsys/RegularExpression.hxx>
 #include <cmsys/FStream.hxx>
 
+#ifdef _WIN32
+#include <io.h> // for _setmode
+#include <fcntl.h> // for _O_BINARY
+#include <stdio.h> // for std{out,err} and fileno
+#endif
+
 //----------------------------------------------------------------------------
 cmCTestLaunch::cmCTestLaunch(int argc, const char* const* argv)
 {
@@ -259,6 +265,13 @@ void cmCTestLaunch::RunChild()
               std::ios::out | std::ios::binary);
     }
 
+#ifdef _WIN32
+  // Do this so that newline transformation is not done when writing to cout
+  // and cerr below.
+  _setmode(fileno(stdout), _O_BINARY);
+  _setmode(fileno(stderr), _O_BINARY);
+#endif
+
   // Run the real command.
   cmsysProcess_Execute(cp);