1 files changed, 2 insertions, 0 deletions

diff --git a/src/coding.h b/src/coding.h
index 4692e1ddc71..cb0b1755b1d 100644
--- a/src/coding.h
+++ b/src/coding.h
@@ -632,6 +632,8 @@ extern Lisp_Object code_convert_string_norecord P_ ((Lisp_Object, Lisp_Object,
 extern void setup_raw_text_coding_system P_ ((struct coding_system *));
 extern Lisp_Object encode_coding_string P_ ((Lisp_Object,
                                              struct coding_system *, int));
+extern Lisp_Object decode_coding_string P_ ((Lisp_Object,
+                                             struct coding_system *, int));
 extern Lisp_Object Qcoding_system, Qeol_type, Qcoding_category_index;
 extern Lisp_Object Qraw_text, Qemacs_mule;
 extern Lisp_Object Qbuffer_file_coding_system;