diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5d4749b..e0c1e0b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ### Changed
 
+### Fixed
+
+- `startpage` and publisher information correctly handled at `\authorsetup{}`
+
 ## [1.3.0] - 2023-02-10
 
 ### Changed
diff --git a/authorarchive.sty b/authorarchive.sty
index 26d2a07..8eb2378 100644
--- a/authorarchive.sty
+++ b/authorarchive.sty
@@ -137,14 +137,14 @@
 \setlength{\AA@width}{\textwidth}
 
 \def\AA@pageinfo{}
+
+\AtBeginDocument{
 \ifthenelse{\equal{\AA@startpage}{UNKNOWN START PAGE}}{%
 }{%
   \setcounter{page}{\AA@startpage}%
   \def\AA@pageinfo{pp. \thepage--\pageref{\aa@lastpage}, }
 }
 
-
-
 %%%% sig-alternate.cls
 \ifAA@ACM%
   \ifthenelse{\equal{\AA@publisher}{UNKNOWN PUBLISHER}}{%
@@ -223,7 +223,7 @@
   \setlength{\AA@width}{\textwidth}
   \setcounter{tocdepth}{2}
 \fi
-%
+}
 
 \hypersetup{%
   draft         = false,