diff --git a/utils/GPSsmooth/UGear_main.cxx b/utils/GPSsmooth/UGear_main.cxx
index bad1a9bf6..f10a7f84e 100644
--- a/utils/GPSsmooth/UGear_main.cxx
+++ b/utils/GPSsmooth/UGear_main.cxx
@@ -2,7 +2,11 @@
 #  include <config.h>
 #endif
 
-#include <strings.h>		// for bzero()
+#ifndef _MSC_VER
+#  include <strings.h>		// for bzero()
+#else
+#  define bzero(a,b) memset(a,0,b)
+#endif
 #include <iostream>
 #include <string>