diff --git a/mos.yml b/mos.yml
index 5f17ec5..a8d0e6c 100644
--- a/mos.yml
+++ b/mos.yml
@@ -18,6 +18,7 @@ libs:
   - origin: https://github.com/mongoose-os-libs/rpc-service-i2c
   - origin: https://github.com/mongoose-os-libs/rpc-service-ota
   - origin: https://github.com/mongoose-os-libs/rpc-uart
+  - origin: https://github.com/mongoose-os-libs/vfs-dev-spi-flash
 
 tags:
   - c