diff --git a/docs/formatting.md b/docs/formatting.md
index 7aa16f9b..d75ba1ba 100644
--- a/docs/formatting.md
+++ b/docs/formatting.md
@@ -212,3 +212,12 @@ Starting a format string with '\f<Type> ' allows to set a different format strin
 </tbody>
 </table>
 
+> **Note:**
+>
+> `\f` is the [Form Feed](https://en.wikipedia.org/w/index.php?title=Page_break&oldid=1027475805#Form_feed)
+> character. (ASCII code 12 or 0xc)
+>
+> Writing it as `\f` is native to JSON, but will *not* get interpreted
+> as such by most shells. To use this character there:
+> * hold `Ctrl`, then press `v` followed by `l`, resulting in `^L` or
+> * use `echo` or `printf` (e.g. `gallery-dl -f "$(echo -ne \\fM) my_module:generate_text"`)