diff --git a/main.go b/main.go
index c144c6b..f275195 100644
--- a/main.go
+++ b/main.go
@@ -11,10 +11,9 @@ import (
 )
 
 type heading struct {
-	text   string
-	level  int
-	line   int
-	parent *heading
+	text  string
+	level int
+	line  int
 }
 
 func is_heading(line string) bool {
@@ -47,7 +46,7 @@ func parse_file(file_name string) []heading {
 	for index, value := range file_lines {
 		if is_heading(value) {
 			headings = append(
-				headings, heading{value, get_heading_level(value), (index + 1), nil})
+				headings, heading{value, get_heading_level(value), (index + 1)})
 		}
 	}
 	return headings