diff --git a/Source/cmStandardIncludes.h b/Source/cmStandardIncludes.h
index 49b68abbfd..e6b1eafa03 100644
--- a/Source/cmStandardIncludes.h
+++ b/Source/cmStandardIncludes.h
@@ -80,9 +80,10 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <list>
 #include <set>
 
+#include <string.h>
+
 #ifdef CMAKE_NO_STD_NAMESPACE
 #define std 
-# define for if (false) { } else for
 #endif