diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index 1b463b167e7..e0fc0ff98ab 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -48453,6 +48453,7 @@ All values are given in decimal representation.
   EPERM           1
   ENOENT          2
   EINTR           4
+  EIO             5
   EBADF           9
   EACCES         13
   EFAULT         14
@@ -48468,6 +48469,7 @@ All values are given in decimal representation.
   ENOSPC         28
   ESPIPE         29
   EROFS          30
+  ENOSYS         88
   ENAMETOOLONG   91
   EUNKNOWN       9999
 @end smallexample