diff --git a/general/genlib/libical.xml b/general/genlib/libical.xml
index 40c80f0beb..5fe7f4900d 100644
--- a/general/genlib/libical.xml
+++ b/general/genlib/libical.xml
@@ -43,7 +43,7 @@
 
       <para>The download link below obtains
       <filename>libical-&libical-version;.tar.gz</filename> if a web browser
-      such as <xref linkend="firefox"/> is used. This is is the correct name
+      such as <xref linkend="firefox"/> is used. This is the correct name
       for the archive, because it saves the file as <filename
       class="directory">libical-&libical-version;</filename>. However, if
       another method is used for downloading, e.g. <xref linkend="wget"/>, the