diff --git a/StandardizedClinicalDataTables/OBSERVATION.md b/StandardizedClinicalDataTables/OBSERVATION.md
index 0146ce1..0c23df6 100644
--- a/StandardizedClinicalDataTables/OBSERVATION.md
+++ b/StandardizedClinicalDataTables/OBSERVATION.md
@@ -1,7 +1,7 @@
 The OBSERVATION table captures clinical facts about a Person obtained in the context of examination, questioning or a procedure. Any data that cannot be represented by any other domains, such as social and lifestyle facts, medical history, family history, etc. are recorded here.
 
 Field|Required|Type|Description
-:--------------------|:--------|:------------|:-------------------------------------------------------
+:----------------------------|:--------|:------------|:-------------------------------------------------------
 |observation_id|Yes|integer|A unique identifier for each observation.|
 |person_id|Yes|integer|A foreign key identifier to the Person about whom the observation was recorded. The demographic details of that Person are stored in the PERSON table.|
 |observation_concept_id|Yes|integer|A foreign key to the standard observation concept identifier in the Standardized Vocabularies.|