diff --git a/Documentation/config/uploadpack.txt b/Documentation/config/uploadpack.txt
index b0d761282c..6729a072ea 100644
--- a/Documentation/config/uploadpack.txt
+++ b/Documentation/config/uploadpack.txt
@@ -59,7 +59,8 @@ uploadpack.allowFilter::
 
 uploadpackfilter.allow::
 	Provides a default value for unspecified object filters (see: the
-	below configuration variable).
+	below configuration variable). If set to `true`, this will also
+	enable all filters which get added in the future.
 	Defaults to `true`.
 
 uploadpackfilter.<filter>.allow::