diff --git a/tools/build-system/build_tarball.sh b/tools/build-system/build_tarball.sh
index dacdb9b0a6ab1b965dcca989062000e50238d07c..977698865f13002971a35641317bec857b483a28 100755
--- a/tools/build-system/build_tarball.sh
+++ b/tools/build-system/build_tarball.sh
@@ -34,7 +34,8 @@ rm -rf $BUILDDIR
 rm -f *.tar.gz
 
 rm -rf lang/
-sed /^Version/s/[0-9].*/$SOFTWARE_VERSION/ tools/build-system/rpm/sflphone.spec > sflphone.spec
+# No dash in Version:
+sed /^Version/s/[0-9].*/${SOFTWARE_VERSION%%-*}/ tools/build-system/rpm/sflphone.spec > sflphone.spec
 rm -rf tools/
 #rm -rf kde/