diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index f96cc74..8940a9e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,7 +4,7 @@ stages:
   - build
 
 before_script:
-  - echo "http://dl-cdn.alpinelinux.org/alpine/edge/testing" > /etc/apk/repositories
+  - echo "http://dl-cdn.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories
   - apk update
   - apk add musl-dev eudev-libs eudev-dev linux-headers cmake ninja gcc
   - apk add libxcb-dev xcb-util-wm-dev xcb-util-cursor-dev cairo-dev yaml-dev