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-rw-r--r--doc/ref/api-evaluation.texi2
1 files changed, 1 insertions, 1 deletions
diff --git a/doc/ref/api-evaluation.texi b/doc/ref/api-evaluation.texi
index 98822f657..611283225 100644
--- a/doc/ref/api-evaluation.texi
+++ b/doc/ref/api-evaluation.texi
@@ -1012,7 +1012,7 @@ by @code{file-encoding}, if any, again by using
@code{set-port-encoding!}. Then the code can be read as normal.
@deffn {Scheme Procedure} file-encoding port
-@deffnx {C Function} scm_file_encoding port
+@deffnx {C Function} scm_file_encoding (port)
Scan the port for an Emacs-like character coding declaration near the
top of the contents of a port with random-accessible contents
(@pxref{Recognize Coding, how Emacs recognizes file encoding,, emacs,