diff --git a/docs/content/filtering.md b/docs/content/filtering.md
index 6c33d2c82..fb22b0c7f 100644
--- a/docs/content/filtering.md
+++ b/docs/content/filtering.md
@@ -82,6 +82,11 @@ Special characters can be escaped with a `\` before them.
     \\.jpg       - matches "\.jpg"
     \[one\].jpg  - matches "[one].jpg"
 
+Note also that rclone filter globs can only be used in one of the
+filter command line flags, not in the specification of the remote, so
+`rclone copy "remote:dir*.jpg" /path/to/dir` won't work - what is
+required is `rclone --include "*.jpg" copy remote:dir /path/to/dir`
+
 ### Directories ###
 
 Rclone keeps track of directories that could match any file patterns.