diff --git a/notmuch/.notmuch-config b/notmuch/.notmuch-config
index 942bc93..b2fc004 100644
--- a/notmuch/.notmuch-config
+++ b/notmuch/.notmuch-config
@@ -96,3 +96,6 @@ synchronize_flags=true
 #
 [crypto]
 gpg_path=gpg
+
+[index]
+decrypt=true