diff --git a/DataGuide_AAPF_RGB.md b/DataGuide_AAPF_RGB.md
index 403c057..9acb998 100644
--- a/DataGuide_AAPF_RGB.md
+++ b/DataGuide_AAPF_RGB.md
@@ -11,7 +11,7 @@ This document details the file system organization and navigation procedures for
 - [Filename Conventions](#filename-conventions)
 - [Image Products](##image-products-example-resized)
 - [How to Read Image Files Containing Morphological Measurement Info](#how-to-read-image-files-containing-morphological-measurement-info-image-with-mes-in-the-filename)
-- [How to Read Information in Spreadsheet files (.xlsx for masterfile or csv for individual measurements)]() 
+- [How to Read Information in Spreadsheet files (.xlsx for masterfile or csv for individual measurements)](#how-to-read-information-in-spreadsheet-files-xlsx-for-masterfile-or-csv-for-individual-measurements)
 
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