diff --git a/lectureslides.cls b/lectureslides.cls
index cf39f0e..d09e064 100644
--- a/lectureslides.cls
+++ b/lectureslides.cls
@@ -1,4 +1,4 @@
-\def\filedate{2 August 2018}
+\def\filedate{4 August 2018}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %
 % Document class for lecture slides.
@@ -16,12 +16,13 @@
 % v1.3   Added support for configurable class types.
 % v1.3.1 Fixed regression that eliminated paper title from title page.
 % v1.3.2 Added text highlighting and \alertbf macros.
+% v1.3.3 Corrected trailing spacing of \highlight.
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 \NeedsTeXFormat{LaTeX2e}[2001/06/01]
 \ProvidesClass{lectureslides}%
-         [2018/08/02 INFO lecture slides style, v.1.3.2]
+         [2018/08/04 INFO lecture slides style, v.1.3.3]
 
 % "Stream of conciousness" chapters vs. explicit individual classes. NOTE:
 % you can't have both chapters and classes! This is because we use the same
@@ -116,7 +117,7 @@
 
 % Coloured highlighting of text (via Mark George).
 % \vphantom gives correct ascender and descender height for box.
-\newcommand{\highlight}[2][yellow!75]{\setlength{\fboxsep}{1pt}\hskip-1pt\colorbox{#1}{\vphantom{dy}#2}}
+\newcommand{\highlight}[2][yellow!75]{\setlength{\fboxsep}{1pt}\hskip-1pt\colorbox{#1}{\vphantom{dy}#2}\hskip-1pt}
 
 % Uses the same spacing as \highlight, but does no highlighting.  Use on the
 % original code when using incremental highlighting.