diff --git a/src/main/resources/org/polystat/far/cleanup-perps.xsl b/src/main/resources/org/polystat/far/cleanup-perps.xsl
index c4d791c..6dbc1d5 100644
--- a/src/main/resources/org/polystat/far/cleanup-perps.xsl
+++ b/src/main/resources/org/polystat/far/cleanup-perps.xsl
@@ -24,8 +24,7 @@ SOFTWARE.
 -->
 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" id="cleanup-perps" version="2.0">
   <!--
-  This XSL deletes all <opt> elements, which have at least
-  one variable with \perp value. It's obvious, that such a
+  This XSL deletes all <opt> elements, which variable is \perp value. It's obvious, that such a
   situation is impossible: \perp can't come in as a value.
   -->
   <xsl:strip-space elements="*"/>