diff --git a/Sql Server/OMOP CDM sql server pk indexes.txt b/Sql Server/OMOP CDM sql server pk indexes.txt
index f61b4c1..3c41944 100644
--- a/Sql Server/OMOP CDM sql server pk indexes.txt	
+++ b/Sql Server/OMOP CDM sql server pk indexes.txt	
@@ -316,7 +316,7 @@ Standardized derived elements
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-REATE CLUSTERED INDEX idx_drug_era_person_id ON drug_era (person_id ASC);
+CREATE CLUSTERED INDEX idx_drug_era_person_id ON drug_era (person_id ASC);
 CREATE INDEX idx_drug_era_concept_id ON drug_era (drug_concept_id ASC);
 
 CREATE CLUSTERED INDEX idx_dose_era_person_id ON dose_era (person_id ASC);