diff --git a/doc/filters.texi b/doc/filters.texi
index f59d23a78e..8f1446da0a 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -9176,9 +9176,6 @@ tell if the current frame is interlaced
 @item T
 the time in seconds of the current frame
 
-@item TB
-the time base
-
 @item POS
 original position in the file of the frame, or undefined if undefined
 for the current frame
@@ -9201,6 +9198,10 @@ instead.
 
 @item RTCSTART
 wallclock (RTC) time at the start of the movie in microseconds
+
+@item TB
+timebase of the input timestamps
+
 @end table
 
 @subsection Examples