diff --git a/.config/aerc/binds.conf b/.config/aerc/binds.conf
index ffa782a..2a562ed 100644
--- a/.config/aerc/binds.conf
+++ b/.config/aerc/binds.conf
@@ -86,6 +86,8 @@ H = :toggle-headers<Enter>
 J = :next<Enter>
 K = :prev<Enter>
 
+O = :open<Enter>
+
 [compose]
 # Keybindings used when the embedded terminal is not selected in the compose
 # view