diff --git a/doc/adding-an-icon.md b/doc/adding-an-icon.md
new file mode 100644
index 000000000..be19a6b5f
--- /dev/null
+++ b/doc/adding-an-icon.md
@@ -0,0 +1,12 @@
+### Adding an icon to the font file (e.g. for the floating menu)
+1. Go to https://icomoon.io/app/
+2. Go to "Manage Projects" from the menu on the top left.
+3. Use "Import project" and select fonts/selection.json from Jitsi Meet.
+4. Import icons (e.g. svg files) using the "import items" button.
+5. Go to "generate font" and make sure the identifiers for the new icons are correct.
+6. Download the result in a zip file using the "download" button.
+7. Copy selection.json and fonts/jitsi.* from the zip file to fonts/ in Jitsi Meet
+8. Copy the class for the new icon from style.css in the zip file to css/font.css in Jitsi Meet (do *not* copy the whole file)
+
+Sample commit: https://github.com/jitsi/jitsi-meet/commit/68bc819b89aec12364fcf07b81efa83a1900eed6
+