diff --git a/src/HsH-report.cls b/src/HsH-report.cls
index 2ea559fdfdc282bce50b0c6e2aac67d819bedc35..3ad22b0df59ba9aabc40d0e005ca833f0374c81f 100644
--- a/src/HsH-report.cls
+++ b/src/HsH-report.cls
@@ -321,7 +321,7 @@
 				\vskip 1.5em
 				{\usekomafont{date}{\@date \par}}%
 				\vskip \z@ \@plus3fill
-				\if\@prof\@empty\else\usekomafont{author}{Professor(in)/Lehrbeauftragte(r): \@prof}\fi
+				{\if\@prof\@empty\else\usekomafont{author}{Professor(in)/Lehrbeauftragte(r): \@prof}\fi}
 				%{\usekomafont{publishers}{\@publishers \par}}%
 				% end Customised: --------------------------------------------------------
 				\vskip 3em