Various minor fixes.
diff --git a/man/zip_source_function.mdoc b/man/zip_source_function.mdoc
index a8772c9..9578848 100644
--- a/man/zip_source_function.mdoc
+++ b/man/zip_source_function.mdoc
@@ -152,7 +152,7 @@
 Specify position to read next byte from, like
 .Xr fseek 3 .
 Use
-.Xr ZIP_SOURCE_GET_ARGS
+.Xr ZIP_SOURCE_GET_ARGS 3
 to decode the arguments into the following struct:
 .Bd -literal
 struct zip_source_args_seek {