diff --git a/configure.in b/configure.in
index 2e189b3b9..78e8e362b 100644
--- a/configure.in
+++ b/configure.in
@@ -632,7 +632,7 @@ RUBY="$RUBYBIN"
 fi
 AC_MSG_CHECKING(for Ruby header files)
 if test -n "$RUBY"; then
-	RUBYDIR=`($RUBY -rmkmf -e 'print $archdir') 2>/dev/null`
+	RUBYDIR=`($RUBY -rmkmf -e 'print Config::CONFIG[["archdir"]] || $archdir') 2>/dev/null`
 	if test "$RUBYDIR" != ""; then
 		dirs="$RUBYDIR"
 		RUBYINCLUDE=none