diff --git a/assets/default/dotfiles/tmux.conf b/assets/default/dotfiles/tmux.conf
index 6e0e82f..0a62b01 100644
--- a/assets/default/dotfiles/tmux.conf
+++ b/assets/default/dotfiles/tmux.conf
@@ -27,15 +27,13 @@ setw -g mouse-select-window on
 setw -g mouse-select-pane on
 
 # easy splitting
-if-shell "vertest `tmux -V` '>=' 1.9" 'bind | split-window -h -c "#{pane_current_path}"'
-if-shell "vertest `tmux -V` '>=' 1.9" 'bind - split-window -c "#{pane_current_path}"'
-if-shell "vertest `tmux -V` '>=' 1.9" 'bind _ split-window -c "#{pane_current_path}"'
+if-shell "source ./.bash_funcs && vertest `tmux -V | sed 's/[^0-9\.]*//g'` '>=' 1.9" 'bind | split-window -h -c "#{pane_current_path}"'
+if-shell "source ./.bash_funcs && vertest `tmux -V | sed 's/[^0-9\.]*//g'` '>=' 1.9" 'bind - split-window -c "#{pane_current_path}"'
+if-shell "source ./.bash_funcs && vertest `tmux -V | sed 's/[^0-9\.]*//g'` '>=' 1.9" 'bind _ split-window -c "#{pane_current_path}"'
 # old versions (some won't recognize new vertest function"
-if-shell "vertest `tmux -V` '<' 1.9 || [ $? -eq 127 ]" 'bind | split-window -h'
-if-shell "vertest `tmux -V` '<' 1.9 || [ $? -eq 127 ]" 'bind - split-window'
-if-shell "vertest `tmux -V` '<' 1.9 || [ $? -eq 127 ]" 'bind _ split-window'
-
-run-shell "source ./.bash_funcs && vertest `tmux -V` '>' 1.9 && touch tmux.true || touch tmux.false"
+if-shell "source ./.bash_funcs && vertest `tmux -V | sed 's/[^0-9\.]*//g'` '<' 1.9 || [ $? -eq 127 ]" 'bind | split-window -h'
+if-shell "source ./.bash_funcs && vertest `tmux -V | sed 's/[^0-9\.]*//g'` '<' 1.9 || [ $? -eq 127 ]" 'bind - split-window'
+if-shell "source ./.bash_funcs && vertest `tmux -V | sed 's/[^0-9\.]*//g'` '<' 1.9 || [ $? -eq 127 ]" 'bind _ split-window'
 
 # act like vim
 setw -g mode-keys vi