Don't modify the result of getenv().

1 files changed, 1 insertions, 1 deletions

diff --git a/color.h b/color.h
index d022d34..61b71c0 100644
--- a/color.h
+++ b/color.h
@@ -26,7 +26,7 @@ struct color_table;
  *         A color table in the LS_COLORS environment variable format.
  * @return The parsed color table.
  */
-struct color_table *parse_colors(char *ls_colors);
+struct color_table *parse_colors(const char *ls_colors);
 
 /**
  * Pretty-print a file path.