diff --git a/sp_CheckAG.sql b/sp_CheckAG.sql
index eca0352..661e790 100644
--- a/sp_CheckAG.sql
+++ b/sp_CheckAG.sql
@@ -1427,23 +1427,26 @@ IF @Mode IN (0, 2, 99) BEGIN
  
 	-- replica state change events --
  
-	;WITH state_change_data AS
-	(
+	IF @xel_path IS NOT NULL
+	BEGIN
+		;WITH state_change_data AS
+		(
+			SELECT
+				object_name
+				, event_data = CONVERT(XML, event_data)
+			FROM sys.fn_xe_file_target_read_file(@xel_path, null, null, null)
+		)
+		INSERT #StateChanges
 		SELECT
+			--@@servername "host name"
 			object_name
-			, event_data = CONVERT(XML, event_data)
-		FROM sys.fn_xe_file_target_read_file(@xel_path, null, null, null)
-	)
-	INSERT #StateChanges
-	SELECT
-		--@@servername "host name"
-		object_name
-		, event_timestamp = dateadd(hour, @utc_adjustment, event_data.value('(event/@timestamp)[1]', 'datetime'))
-		, ag_name = event_data.value('(event/data[@name = "availability_group_name"]/value)[1]', 'varchar(64)')
-		, previous_state = event_data.value('(event/data[@name = "previous_state"]/text)[1]', 'varchar(64)')
-		, current_state = event_data.value('(event/data[@name = "current_state"]/text)[1]', 'varchar(64)')
-	FROM state_change_data
-	WHERE object_name = 'availability_replica_state_change';
+			, event_timestamp = dateadd(hour, @utc_adjustment, event_data.value('(event/@timestamp)[1]', 'datetime'))
+			, ag_name = event_data.value('(event/data[@name = "availability_group_name"]/value)[1]', 'varchar(64)')
+			, previous_state = event_data.value('(event/data[@name = "previous_state"]/text)[1]', 'varchar(64)')
+			, current_state = event_data.value('(event/data[@name = "current_state"]/text)[1]', 'varchar(64)')
+		FROM state_change_data
+		WHERE object_name = 'availability_replica_state_change';
+	END
 
 	INSERT #Results
 	SELECT