diff --git a/docs/lcdproc-dev/bookinfo.docbook b/docs/lcdproc-dev/bookinfo.docbook
index 194b888..f76bffe 100644
--- a/docs/lcdproc-dev/bookinfo.docbook
+++ b/docs/lcdproc-dev/bookinfo.docbook
@@ -1,7 +1,7 @@
 <bookinfo>
 
 <title>LCDproc Developer's Guide</title>
-<subtitle>The Hitchhicker's Guide to LCDproc 0.5</subtitle>
+<subtitle>The Hitchhiker's Guide to LCDproc 0.5</subtitle>
 
 <authorgroup>