diff --git a/ArchiveState.go b/ArchiveState.go
index 2ed3660..37e244f 100644
--- a/ArchiveState.go
+++ b/ArchiveState.go
@@ -253,18 +253,18 @@ func (this *ArchiveState) renderTemplateHead(w http.ResponseWriter) {
 		for ympair := this.log.EarliestDate(); !ympair.Equals(limit); ympair = ympair.Next() {
 			if ympair.Year != lastY {
 				if lastY != -1 {
-					w.Write([]byte("\t\t\t\t</optgroup>\n"))
+					w.Write([]byte("\t\t\t\t\t</optgroup>\n"))
 				}
-				w.Write([]byte(fmt.Sprintf("\t\t\t\t<optgroup label=\"%d\">\n", ympair.Year)))
+				w.Write([]byte(fmt.Sprintf("\t\t\t\t\t<optgroup label=\"%d\">\n", ympair.Year)))
 				lastY = ympair.Year
 			}
 
 			targetUri := fmt.Sprintf(`/%s/%d/%d`, this.logBestSlug, ympair.Year, ympair.Month)
 
-			w.Write([]byte(fmt.Sprintf("\t\t\t\t\t<option value=\"%s\"%s>%s</option>\n", html.EscapeString(targetUri), attr(ympair.Equals(this.ym), " selected"), html.EscapeString(ympair.Month.String()))))
+			w.Write([]byte(fmt.Sprintf("\t\t\t\t\t\t<option value=\"%s\"%s>%s</option>\n", html.EscapeString(targetUri), attr(ympair.Equals(this.ym), " selected"), html.EscapeString(ympair.Month.String()))))
 		}
 		if lastY != -1 {
-			w.Write([]byte("\t\t\t\t</optgroup>\n"))
+			w.Write([]byte("\t\t\t\t\t</optgroup>\n"))
 		}
 		w.Write([]byte(`
 				</select>