diff --git a/autoconf/config.guess b/autoconf/config.guess
index 73d671bc2c6..b209a1a06c6 100755
--- a/autoconf/config.guess
+++ b/autoconf/config.guess
@@ -810,6 +810,9 @@ EOF
     *:MINGW*:*)
 	echo ${UNAME_MACHINE}-pc-mingw32
 	exit ;;
+    *:MSYS*:*)
+	echo ${UNAME_MACHINE}-pc-msys
+	exit ;;
     i*:windows32*:*)
 	# uname -m includes "-pc" on this system.
 	echo ${UNAME_MACHINE}-mingw32