diff --git a/man4/console_codes.4 b/man4/console_codes.4
index 0d7514965..34f7535a2 100644
--- a/man4/console_codes.4
+++ b/man4/console_codes.4
@@ -373,7 +373,10 @@ ESC [ 11 ; \fIn\fP ]	Set bell duration in msec.
 ESC [ 12 ; \fIn\fP ]	Bring specified console to the front.
 ESC [ 13 ]      	Unblank the screen.
 ESC [ 14 ; \fIn\fP ]   	Set the VESA powerdown interval in minutes.
-ESC [ 15 ]      	Bring the previous console to the front.
+ESC [ 15 ]      	T{
+Bring the previous console to the front
+(since Linux 2.6.0).
+T}
 .TE
 .SS Character sets
 The kernel knows about 4 translations of bytes into console-screen