diff --git a/Formatting.md b/Formatting.md
index 060323a..3643e7a 100644
--- a/Formatting.md
+++ b/Formatting.md
@@ -205,3 +205,4 @@ Actions handlers are defined using the following syntax: `%{A<button-index><colo
 ~~~
 %{A1:command:} clickable text %{A}
 ~~~
+**Note:** If `command` contains any colons (`:`), you have to escape them with a backslash like this: `\:`. Otherwise the colon acts as the command delimiter and polybar would only parse the command until the colon.