Add powerline symbols
diff --git a/src/system.nix b/src/system.nix
index 79aec98..29781ee 100644
--- a/src/system.nix
+++ b/src/system.nix
@@ -329,6 +329,7 @@
       twitter-color-emoji
       twemoji-color-font
       ubuntu_font_family
+      powerline-symbols
     ];
 
     enableDefaultFonts = true;