diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 87bd0e6821ed..7ce3362efb24 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -15,3 +15,7 @@ suggesting the next steps.
 - Keep the code style (indents, wrapping) consistent.
 - If your PR involves a lot of commits, squash them using `git rebase -i` as this makes it easier for us to review.
 - Keep lines under 80 characters.
+
+### Windows support
+
+Flagsmith development under Windows is not currently supported. If you are contributing from Windows, consider using Windows Subsystem for Linux.