diff --git a/core/filters.md b/core/filters.md
index 6c88bc64129..214930017d5 100644
--- a/core/filters.md
+++ b/core/filters.md
@@ -152,7 +152,7 @@ constant directly.
 
 The boolean filter allows you to search on boolean fields and values.
 
-Syntax: `?property=[on|off|true|false|0|1]`
+Syntax: `?property=[true|false|1|0]`
 
 You can either use TRUE or true, the parameters are case insensitive.