diff --git a/tmux.conf b/tmux.conf
index 84d613eb..0be8c967 100644
--- a/tmux.conf
+++ b/tmux.conf
@@ -17,6 +17,8 @@ set-option -g default-shell $SHELL
 # a mouse
 setw -g mouse-utf8 on
 setw -g mouse on
+# fix mouse scrolling: enter copy mode on scroll-up, exits it when scrolled to bottom
+bind -n WheelUpPane if-shell -F -t = "#{mouse_any_flag}" "send-keys -M" "if -Ft= '#{pane_in_mode}' 'send-keys -M' 'copy-mode -e'"
 
 ## Key bindings ###########
 # Remap the key prefix