diff --git a/README.md b/README.md
index 131d774..7b2dc22 100644
--- a/README.md
+++ b/README.md
@@ -72,7 +72,7 @@ The exact path to the local `ffmpeg` and `ffprobe` binaries can be overridden in
 
 ### Target Host Selection
 
-When more than one target host is present, `rffmpeg` uses the following rules to select a new host:
+When more than one target host is present, `rffmpeg` uses the following rules to select a new host. These rules are evaluated each time a new `rffmpeg` alias process is spawned.
 
 1. Any hosts marked `bad` are ignored until that marking is cleared.