diff --git a/Source.md b/Source.md
index 80bafc6..a080319 100644
--- a/Source.md
+++ b/Source.md
@@ -107,4 +107,6 @@ Checkout instructions for setup with [[Caddy Webserver Config]] and [[Nginx Webs
 
 ## Windows
 
+Building on Windows (if it works) is a lot slower than on Linux/Mac.
+
 [Windows](https://github.com/wekan/wekan/wiki/Windows)
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