diff --git a/rtems/config/6/rtems-riscv.bset b/rtems/config/6/rtems-riscv.bset
index 42a4ebd..ad7cb5b 100644
--- a/rtems/config/6/rtems-riscv.bset
+++ b/rtems/config/6/rtems-riscv.bset
@@ -2,3 +2,4 @@
 %define rtems_arch riscv
 %define with_libgomp
 %include 6/rtems-default.bset
+devel/sis-2-1