diff --git a/.ci/prepare_build_dir.sh b/.ci/prepare_build_dir.sh
index 03894a6..f2aebef 100644
--- a/.ci/prepare_build_dir.sh
+++ b/.ci/prepare_build_dir.sh
@@ -1,14 +1,13 @@
-
 mkdir ~/build_dir
 cd  ~/build_dir
 
 tar Jxf ~/sdk/$SDK_FILE --strip=1
 
 cat > feeds.conf <<EOF
-src-git packages https://git.openwrt.org/feed/packages.git
-src-git luci https://git.openwrt.org/project/luci.git
-src-git routing https://git.openwrt.org/feed/routing.git
-src-git telephony https://git.openwrt.org/feed/telephony.git
+src-git packages https://git.openwrt.org/feed/packages.git;openwrt-18.06
+src-git luci https://git.openwrt.org/project/luci.git;openwrt-18.06
+src-git routing https://git.openwrt.org/feed/routing.git;openwrt-18.06
+src-git telephony https://git.openwrt.org/feed/telephony.git;openwrt-18.06
 src-git gluon https://github.com/freifunk-gluon/packages.git
 
 src-link $CI_PROJECT_NAME /builds/$CI_PROJECT_PATH