diff --git a/prologue/why.xml b/prologue/why.xml
index 6f63b1375..9af50d2b9 100644
--- a/prologue/why.xml
+++ b/prologue/why.xml
@@ -235,7 +235,7 @@
         <para>Gperf</para>
 
         <para>This package a program that generates a perfect hash function 
-        from a key set.  It is required for systemd.
+        from a key set.  It is required for Eudev.
         </para>
       </listitem>