diff --git a/readme_template.md b/readme_template.md
index f6e4309d7..3dce37537 100644
--- a/readme_template.md
+++ b/readme_template.md
@@ -63,6 +63,8 @@ versions (from locations defined by the update.info text file in each source's f
 containing additional category-specific hosts files to include in the amalgamation. Example: `--extensions porn` or
 `-e social porn`.
 
+`--flush-dns-cache`, or `-f`: skip the prompt for flushing the DNS cache.  Only active when `--replace` is also active.
+
 `--ip nnn.nnn.nnn.nnn`, or `-i nnn.nnn.nnn.nnn`: the IP address to use as the target.  Default is `0.0.0.0`.
 
 `--noupdate`, or `-n`: skip fetching updates from hosts data sources.