diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index a1a771cda2a955919006be5376852c24b530913f..f89a45888157683e768cd314de7b0a5e12df69e7 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -17,4 +17,4 @@ debian:
     - apt update -y
     - apt install -y g++ libprotobuf-dev protobuf-compiler meson ninja-build pkg-config
     # Build protocol (c++)
-    - (cd protocol && meson setup build --prefix=/usr && ninja -C build && meson install)
+    - (cd protocol && meson setup build --prefix=/usr && ninja -C build && meson install -C build)