diff --git a/.mutt/build-neomutt b/.mutt/build-neomutt
--- a/.mutt/build-neomutt
+++ b/.mutt/build-neomutt
@@ -14,6 +14,7 @@ cd sandbox/neomutt
 
 ./prepare \
  --with-ssl \
+ --enable-hcache \
  --enable-imap --enable-smtp \
  --enable-sidebar >/dev/null