diff --git a/testSystemTools.cxx b/testSystemTools.cxx
index 8249b2dab01a58a70bc6d1658a062e3308c48e06..13303dde13e174959a0b514cdc1b6fe8b0a477a9 100644
--- a/testSystemTools.cxx
+++ b/testSystemTools.cxx
@@ -12,6 +12,11 @@
 
 =========================================================================*/
 #include "kwsysPrivate.h"
+
+#if defined(_MSC_VER)
+# pragma warning (disable:4786)
+#endif
+
 #include KWSYS_HEADER(SystemTools.hxx)
 #include KWSYS_HEADER(ios/iostream)