diff --git a/doc/DISCLAIMER.md b/doc/DISCLAIMER.md
index 2f4c44a..a56c4f8 100644
--- a/doc/DISCLAIMER.md
+++ b/doc/DISCLAIMER.md
@@ -1,6 +1,7 @@
 ### Important points to read before installing
 
 - *Misskey* require a dedicated root domain, eg. `misskey.domain.tld`
+- Due to Cypress dependency, *Misskey* only works on 64-bit CPU machines.
 - *Misskey* can take quite some time to install (more then 30 minutes). So take out some time and grab yourself a coffee.
 - If installing from command line use of screen is rerecorded to avoid disconnection. See below.
 - After installation, first page can take time to load and may show timeout error. Give it time to make itself ready for you. Refresh page after 2-3 minutes.