diff --git a/.build.yml b/.build.yml
index b89268a..b277825 100644
--- a/.build.yml
+++ b/.build.yml
@@ -5,6 +5,7 @@ packages:
   - glu
   - libx11
   - glfw-x11
+  - cmake
 tasks:
   - prepare: |
       rustup toolchain install stable