diff --git a/Documentation/StandardizedVocabularies/StandardizedVocabularies.md b/Documentation/StandardizedVocabularies/StandardizedVocabularies.md
index 0f8388d..37b6732 100644
--- a/Documentation/StandardizedVocabularies/StandardizedVocabularies.md
+++ b/Documentation/StandardizedVocabularies/StandardizedVocabularies.md
@@ -10,7 +10,7 @@
 
 <br>[3.1 CONCEPT](CONCEPT.md)
 <br>[3.2 VOCABULARY](VOCABULARY.md)
-<br>3.3 DOMAIN
+<br>[3.3 DOMAIN](DOMAIN.md)
 <br>3.4 CONCEPT_CLASS
 <br>3.5 CONCEPT_RELATIONSHIP
 <br>3.6 RELATIONSHIP
@@ -37,4 +37,4 @@ The advantage of this approach lies in the preservation of codes and relationshi
 
 Below is an entity-relationship diagram highlighting the tables within the Vocabulary portion of the OMOP Common Data Model:
 
-![](images/vocabulary_tables.png)  
\ No newline at end of file
+![](images/vocabulary_tables.png)