diff --git a/doc/Makefile.am b/doc/Makefile.am
index 100a401..fe44146 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -4,7 +4,6 @@ XHTML_STYLESHEET=$(srcdir)/xsl/xhtml.xsl
 CHUNK_XHTML_STYLESHEET=$(srcdir)/xsl/xhtml-chunk.xsl
 XML_CATALOG_FILES=$(srcdir)/xsl/catalog.xml
 
-htmldir = $(prefix)/share/doc/sysbench
 dist_html_DATA = manual.html
 
 EXTRA_DIST=manual.xml