1 files changed, 5 insertions, 2 deletions

diff --git a/src/coding.c b/src/coding.c
index 6b4a620a7dc..aea463bfaa0 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -6358,8 +6358,11 @@ highest priority.  */)
 
 DEFUN ("detect-coding-string", Fdetect_coding_string, Sdetect_coding_string,
        1, 2, 0,
-       doc: /* Detect coding system of the text in STRING.
-Return a list of possible coding systems ordered by priority.
+       doc: /* Detect how the byte sequence in STRING is encoded.
+Return a list of possible coding systems used on decoding a byte
+sequence containing the bytes in STRING when the coding system
+`undecided' is specified.  The list is ordered by priority decided in
+the current language environment.
 
 If only ASCII characters are found, it returns a list of single element
 `undecided' or its subsidiary coding system according to a detected