diff --git a/.tmux.conf b/.tmux.conf
index 44d26fd..b628e84 100644
--- a/.tmux.conf
+++ b/.tmux.conf
@@ -16,7 +16,7 @@
 
 set -g default-terminal "screen-256color"
 
-%if #{>=:#{version},3.2}
+%if #{||:#{m/ri:mintty|iTerm,#{TERM_PROGRAM}},#{!=:#{XTERM_VERSION},}}
 set -g extended-keys on                   # needed by Control + Shift bindings
 %endif
 set -s escape-time 10                     # faster command sequences