diff --git a/Jamf Pro/Reporting/Database Maintenance and SQL Queries/Queries-Computer Details.sql b/Jamf Pro/Reporting/Database Maintenance and SQL Queries/Queries-Computer Details.sql
index 3820f1e..897011f 100644
--- a/Jamf Pro/Reporting/Database Maintenance and SQL Queries/Queries-Computer Details.sql	
+++ b/Jamf Pro/Reporting/Database Maintenance and SQL Queries/Queries-Computer Details.sql	
@@ -193,6 +193,7 @@ SELECT
 	IF(computers_denormalized.serial_number IN (
 				SELECT serial_number
 				FROM computers_denormalized
+				WHERE computers_denormalized.is_managed = 1 -- When looking for duplicates, only checked against managed if the records
 				GROUP BY serial_number
 				HAVING COUNT(serial_number) > 1
 			), "True", "False") AS "Duplicate Serial Numbers",
diff --git a/Jamf Pro/Reporting/Database Maintenance and SQL Queries/Queries-Mobile Device Details.sql b/Jamf Pro/Reporting/Database Maintenance and SQL Queries/Queries-Mobile Device Details.sql
index f4687ce..a32cde8 100644
--- a/Jamf Pro/Reporting/Database Maintenance and SQL Queries/Queries-Mobile Device Details.sql	
+++ b/Jamf Pro/Reporting/Database Maintenance and SQL Queries/Queries-Mobile Device Details.sql	
@@ -155,6 +155,7 @@ SELECT
 	IF(mobile_devices.serial_number IN (
 				SELECT serial_number
 				FROM mobile_devices
+				WHERE mobile_devices_denormalized.is_managed = 1 -- When looking for duplicates, only checked against managed if the records
 				GROUP BY serial_number
 				HAVING COUNT(serial_number) > 1
 			), "True", "False") AS "Duplicate Serial Numbers",