diff --git a/docs/changelog.txt b/docs/changelog.txt
index cbb945d..47a9081 100644
--- a/docs/changelog.txt
+++ b/docs/changelog.txt
@@ -2,6 +2,8 @@ changelog
 
 -- next
 
++ Add notes field to filters for record keeping.
+
 + Negated search -terms.
 
 + A raw sendactivity API action for the bold.
diff --git a/hfcs.go b/hfcs.go
index 42abd1f..400b0eb 100644
--- a/hfcs.go
+++ b/hfcs.go
@@ -44,6 +44,7 @@ type Filter struct {
 	re_rewrite      *regexp.Regexp
 	Replace         string `json:",omitempty"`
 	Expiration      time.Time
+	Notes string
 }
 
 type filtType uint
diff --git a/views/hfcs.html b/views/hfcs.html
index 03bae70..72b106b 100644
--- a/views/hfcs.html
+++ b/views/hfcs.html
@@ -9,6 +9,9 @@ Honk Filtering and Censorship System
 <h3>new filter</h3>
 <p><label for="name">filter name:</label><br>
 <input tabindex=1 type="text" name="name" value="" autocomplete=off>
+<p><label for="filtnotes">notes:</label><br>
+<textarea tabindex=1 name="filtnotes" height=4>
+</textarea>
 <hr>
 <h3>match</h3>
 <p><label for="actor">who or where:</label><br>
@@ -48,6 +51,7 @@ Honk Filtering and Censorship System
 {{ range .Filters }}
 <section class="honk">
 <p>Name: {{ .Name }}
+{{ with .Notes }}<p>Notes: {{ . }}{{ end }}
 <p>Date: {{ .Date.Format "2006-01-02" }}
 {{ with .Actor }}<p>Who: {{ . }}{{ end }} {{ with .IncludeAudience }} (inclusive) {{ end }}
 {{ with .Text }}<p>Text: {{ . }}{{ end }}
diff --git a/views/style.css b/views/style.css
index 89f0194..76d7345 100644
--- a/views/style.css
+++ b/views/style.css
@@ -143,11 +143,14 @@ textarea {
 	background: var(--bg-page);
 	color: var(--fg);
 	width: 600px;
-	height: 8em;
+	height: 4em;
 	margin-bottom: 0.5em;
 	box-sizing: border-box;
 	max-width: 100%;
 }
+textarea#hostnoise {
+	height: 8em;
+}
 input[type="checkbox"] {
 	position: fixed;
 	top: -9999px;
diff --git a/web.go b/web.go
index cb0a7f4..413df2c 100644
--- a/web.go
+++ b/web.go
@@ -1878,6 +1878,7 @@ func savehfcs(w http.ResponseWriter, r *http.Request) {
 	if dur := parseDuration(r.FormValue("filtduration")); dur > 0 {
 		filt.Expiration = time.Now().UTC().Add(dur)
 	}
+	filt.Notes = strings.TrimSpace(r.FormValue("filtnotes"))
 
 	if filt.Actor == "" && filt.Text == "" && !filt.IsAnnounce {
 		log.Printf("blank filter")