diff --git a/configure.ac b/configure.ac
index b18b3810..f6ed390e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -616,7 +616,7 @@ case "$host_os" in
 		AC_MSG_RESULT(hpux)
 		PLATFORM=hpux
 		;;
-	*cygwin*)
+	*cygwin*|*msys*)
 		AC_MSG_RESULT(cygwin)
 		PLATFORM=cygwin
 		;;