diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index bda8411..3b232cd 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -5,7 +5,7 @@ stages:
 .build:
     stage: build
     before_script:
-        - apt-get update && apt-get install -y build-essential exim4-dev libsodium-dev meson exim4-daemon-heavy
+        - apt-get update && apt-get install -y build-essential exim4-dev libsodium-dev meson exim4-daemon-heavy pkg-config
     script:
         - meson build
         - meson compile -C build