diff --git a/.tmux.conf b/.tmux.conf
index 8d14bf1..d47859d 100644
--- a/.tmux.conf
+++ b/.tmux.conf
@@ -96,7 +96,7 @@ set -g update-environment -r
 setw -g xterm-keys on
 
 # Mouse support for resizing and selecting panes, default to off; not needed for 2.2 and up
-if-shell "if [[ `tmux -V | cut -d' ' -f2` -ge 2.1 ]]; then true; else false; fi" \
+if-shell "if [[ `tmux -V | cut -d' ' -f2` -lt 2.1 ]]; then true; else false; fi" \
     'set -g mouse off; set -g mouse-utf8 off'
 
 # toggle mouse mode to allow mouse copy/paste