diff --git a/doc/manuals/osmomgw-vty-reference.xml b/doc/manuals/osmomgw-vty-reference.xml
index 2d91545..334453e 100644
--- a/doc/manuals/osmomgw-vty-reference.xml
+++ b/doc/manuals/osmomgw-vty-reference.xml
@@ -5,7 +5,7 @@
 -->
 <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML 5.0//EN"
 "http://docbook.org/xml/5.0/dtd/docbook.dtd" [
-<!ENTITY chapter-vty      SYSTEM      "../common/chapters/vty.xml" >
+<!ENTITY chapter-vty      SYSTEM      "./common/chapters/vty.xml" >
 <!ENTITY sections-vty     SYSTEM      "generated/docbook_vty.xml"  >
 ]>