1 files changed, 1 insertions, 3 deletions

diff --git a/src/coding.c b/src/coding.c
index 97a8ea863ee..7bfcb6fc2fd 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -6254,9 +6254,7 @@ If the user enters null input, return second argument DEFAULT-CODING-SYSTEM.  */
 DEFUN ("check-coding-system", Fcheck_coding_system, Scheck_coding_system,
        1, 1, 0,
        doc: /* Check validity of CODING-SYSTEM.
-If valid, return CODING-SYSTEM, else signal a `coding-system-error' error.
-It is valid if it is a symbol with a non-nil `coding-system' property.
-The value of property should be a vector of length 5.  */)
+If valid, return CODING-SYSTEM, else signal a `coding-system-error' error.  */)
   (coding_system)
      Lisp_Object coding_system;
 {