diff --git a/DOCS/man/en/mplayer.1 b/DOCS/man/en/mplayer.1
index 10884dab32..1838a98ab5 100644
--- a/DOCS/man/en/mplayer.1
+++ b/DOCS/man/en/mplayer.1
@@ -5917,7 +5917,7 @@ like tfields
 .B mcdeint=[mode[:parity[:qp]]]
 Motion compensating deinterlacer.
 It needs one field per frame as input and must thus be used together
-with tfields=1 or yadif=1 or equivalent.
+with tfields=1 or yadif=1/3 or equivalent.
 .PD 0
 .RSs
 .IPs <mode>