diff --git a/.drone.yml b/.drone.yml
index a18fbffc6..a235770d6 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -6,7 +6,7 @@ steps:
 - name: build
   image: voidlinux/voidlinux
   commands:
-  - xbps-install -Sy gcc cmake ninja make php-devel lua ncurses-devel libgcrypt-devel gnutls-devel
+  - xbps-install -Sy gcc cmake ninja make php-devel lua ncurses-devel libgcrypt-devel gnutls-devel zlib-devel
   - mkdir build && cd build
   - cmake .. -G Ninja
   - ninja