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-rw-r--r--doc/filters.texi2
1 files changed, 1 insertions, 1 deletions
diff --git a/doc/filters.texi b/doc/filters.texi
index cb2c8994ba..8e70cdb357 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -927,7 +927,7 @@ The filter accepts the following named parameters. If the key of the
first options is omitted, the arguments are interpreted according to
the following syntax:
@example
-drawbox=@var{volume}:@var{precision}
+volume=@var{volume}:@var{precision}
@end example
@table @option