diff --git a/config b/config
index 86b807b..0851087 100644
--- a/config
+++ b/config
@@ -10,6 +10,7 @@
 #
 
 [ -z "${PREFIX}" ] && PREFIX="/usr/local"
+[ -z "${DOCSDIR}" ] && DOCSDIR="${PREFIX}/doc/libCStreamedXML"
 [ -z "${CC}" ] && CC="gcc"
 [ -z "${CFLAGS}" ] && CFLAGS="-g -O2 -W -Wall"
 [ -z "${BINDIR}" ] && BINDIR="${PREFIX}/bin"