http://midnight-commander.org/ticket/4149
--- a/misc/mc.lib
+++ b/misc/mc.lib
@@ -116,6 +116,9 @@ alt-shift-left=\\e[1\;4D
 alt-shift-up=\\e[1\;4A
 alt-shift-down=\\e[1\;4B
 
+[terminal:alacritty]
+copy=xterm
+
 [terminal:gnome]
 copy=xterm
 
@@ -137,6 +140,12 @@ copy=xterm
 [terminal:screen-256color]
 copy=xterm
 
+[terminal:tmux]
+copy=xterm
+
+[terminal:tmux-256color]
+copy=xterm
+
 [terminal:ibmpc3]
 f11=\\e[Y
 f12=\\e[Z