diff --git a/lib/functions.in b/lib/functions.in
index 12e1287..8523203 100644
--- a/lib/functions.in
+++ b/lib/functions.in
@@ -981,7 +981,7 @@ build_this_package() {
 			else # styles that include a make run
 				if [ ! -f Makefile -a ! -f makefile -a \
 				     -f Makefile.PL -a $runmkpl = 1 ]; then
-					perl Makefile.PL ${plconfopt:-INSTALLDIRS=perl}
+					perl Makefile.PL ${plconfopt:-INSTALLDIRS=vendor}
 				fi
 				#
 				if [ ! -f Makefile -a ! -f makefile -a \