diff --git a/src/HsH-article.cls b/src/HsH-article.cls
index e46bda76ea76984dd4b3ac8d7fd300c3cd909d1d..be3b8e72e49266fba69e507ef991e0ca92f054fe 100644
--- a/src/HsH-article.cls
+++ b/src/HsH-article.cls
@@ -92,6 +92,7 @@
 \newcommand{\matrikelnr}[1]{\gdef\@matrikelnr{#1}}%
 \newcommand*{\@prof}{}%
 \newcommand{\professor}[1]{\gdef\@prof{#1}}%
+\let\@author\@empty
 \InputIfFileExists{personal.tex}{
 	\ClassInfo{\myClassName}{personal.tex was found. Using it...}
 }{
diff --git a/src/HsH-report.cls b/src/HsH-report.cls
index f6e883c96ff7ec3aa9d2f3c869c1eb887394593e..8183b612bb1ad9b586e9ed651017bcc914bca8cb 100644
--- a/src/HsH-report.cls
+++ b/src/HsH-report.cls
@@ -92,6 +92,7 @@
 \newcommand{\matrikelnr}[1]{\gdef\@matrikelnr{#1}}%
 \newcommand*{\@prof}{}%
 \newcommand{\professor}[1]{\gdef\@prof{#1}}%
+\let\@author\@empty
 \InputIfFileExists{personal.tex}{
 	\ClassInfo{\myClassName}{personal.tex was found. Using it...}
 }{