diff --git a/.bashrc b/.bashrc
index 3e7b756..257c694 100644
--- a/.bashrc
+++ b/.bashrc
@@ -9,7 +9,7 @@
 [[ $- != *i* ]] && return
 
 # Use powerline if it's installed
-[ -z "$USING_TTY" -a  -s  "/usr/lib/python3.5/site-packages/powerline/bindings/bash/powerline.sh" ] && {
+[ ! -z "$USING_TTY" -a  -s  "/usr/lib/python3.5/site-packages/powerline/bindings/bash/powerline.sh" ] && {
 	powerline-daemon -q
 	POWERLINE_BASH_CONTINUATION=1
 	POWERLINE_BASH_SELECT=1