diff --git a/mktarball.sh b/mktarball.sh
index e6f4621c..380a271f 100755
--- a/mktarball.sh
+++ b/mktarball.sh
@@ -2,7 +2,7 @@
 #Script to create a source tarball for YACReader distribution and packaging
 #This should be run from YACReaders top source directory
 
-YACVERSION=9.0-dev
+YACVERSION=8.6.0-dev
 if [ ! -f "yacreader-${YACVERSION}-src.tar.xz" ]
 then
 	echo "Building source tarball"