diff --git a/eris/eris/tools.py b/eris/eris/tools.py
index d9491b8..03f7a8d 100755
--- a/eris/eris/tools.py
+++ b/eris/eris/tools.py
@@ -697,6 +697,8 @@ def run_tool_no_error(path, tool):
 
 def _charstyle_of_path(path):
     color_code = lscolors.color_code_for_path(path, _LS_COLOR_CODES)
+    if color_code is None:
+        return termstr.CharStyle()
     term_text = termstr.ESC + "[" + color_code + "m-"
     return termstr.TermStr.from_term(term_text).style[0]