diff --git a/Documentation/Filters/Query-Log-All-Filter.md b/Documentation/Filters/Query-Log-All-Filter.md
index 17ad382c8..a0e48f8b3 100644
--- a/Documentation/Filters/Query-Log-All-Filter.md
+++ b/Documentation/Filters/Query-Log-All-Filter.md
@@ -13,6 +13,7 @@ A minimal configuration is below.
 [MyLogFilter]
 type=filter
 module=qlafilter
+filebase=/tmp/SqlQueryLog
 
 [MyService]
 type=service