diff --git a/env/sh/tmux.conf b/env/sh/tmux.conf
index abeea8a..6480ea9 100644
--- a/env/sh/tmux.conf
+++ b/env/sh/tmux.conf
@@ -19,6 +19,9 @@ bind-key W resize-pane -x 100
 bind-key v split-window -h
 bind-key b split-window
 
+# be xterm
+set -g default-terminal "xterm"
+
 # iterating
 bind r source-file ~/.tmux.conf
 
diff --git a/variables.bash b/variables.bash
index 9fa439d..5388b17 100755
--- a/variables.bash
+++ b/variables.bash
@@ -21,7 +21,7 @@ export BAR_TOP=0
 export BAR_HEIGHT=20
 export BAR_BORDER_WIDTH=1
 export BAR_FONT_FAMILY="$PRIMARY_FONT_FAMILY_WITH_SIZE"
-export BAR_UNDERLINE=1
+export BAR_UNDERLINE=0
 # export BAR_MARGIN=$WINDOW_GAP
 export BAR_MARGIN=700
 export BAR_OFFSET=0