diff --git a/.config/fish/config.fish b/.config/fish/config.fish
index 12e913d..f251983 100644
--- a/.config/fish/config.fish
+++ b/.config/fish/config.fish
@@ -4,6 +4,7 @@ end
 fish_default_key_bindings
 
 set -gx EDITOR nvim
+set -gx READER mupdf
 
 fish_add_path $HOME/.local/share/nvim/mason/bin
 fish_add_path /home/afonso/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/bin