diff --git a/System/Posix/Fcntl.hsc b/System/Posix/Fcntl.hsc
index 7760bb5f80da27aec5d2bef19c3b4cff6195d9fe..749826ffeacf9dd9b9f5f2777cad98c7498829a8 100644
--- a/System/Posix/Fcntl.hsc
+++ b/System/Posix/Fcntl.hsc
@@ -16,6 +16,7 @@
 --
 -- POSIX file control support
 --
+-- /Since: 2.7.1.0/
 -----------------------------------------------------------------------------
 
 #include "HsUnix.h"
@@ -42,6 +43,8 @@ import GHC.IO.Exception ( unsupportedOperation )
 -- | Advice parameter for 'fileAdvise' operation.
 --
 -- For more details, see documentation of @posix_fadvise(2)@.
+--
+-- /Since: 2.7.1.0/
 data Advice
   = AdviceNormal
   | AdviceRandom