diff --git a/StandardizedClinicalDataTables/SURVEY_CONDUCT.md b/StandardizedClinicalDataTables/SURVEY_CONDUCT.md
index a519607..5eb61b4 100644
--- a/StandardizedClinicalDataTables/SURVEY_CONDUCT.md
+++ b/StandardizedClinicalDataTables/SURVEY_CONDUCT.md
@@ -7,8 +7,8 @@ PERSON_ID | Yes | integer | A foreign key identifier to the Person in the PERSON
 SURVEY_CONCEPT_ID | Yes | integer | A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the name and identity of the survey.
 SURVEY_START_DATE | No | date | Date on which the survey was started.
 SURVEY_START_DATETIME | No | datetime | Date and time the survey was started.
-SURVEY_END_DATE | Yes | date | Date on which the survey was completed.
-SURVEY_END_DATETIME | No | datetime | Date and time the survey was completed.
+SURVEY_END_DATE | No | date | Date on which the survey was completed.
+SURVEY_END_DATETIME | Yes | datetime | Date and time the survey was completed.
 PROVIDER_ID | No  | integer  | A foreign key to the provider in the provider table who was associated with the survey completion.
 ASSISTED_CONCEPT_ID | Yes | integer | A foreign key to the predefined Concept identifier in the Standardized Vocabularies indicating whether the survey was completed with assistance.
 RESPONDENT_TYPE_CONCEPT_ID | Yes | integer | A foreign key to the predefined Concept identifier in the Standardized Vocabularies reflecting the respondent type. Example: Research Associate, Patient.