diff --git a/installers/charm/prometheus/charmcraft.yaml b/installers/charm/prometheus/charmcraft.yaml
index babeda8..87d0463 100644
--- a/installers/charm/prometheus/charmcraft.yaml
+++ b/installers/charm/prometheus/charmcraft.yaml
@@ -35,5 +35,7 @@
 parts:
   charm:
     build-packages:
+      - cargo
       - git
       - libffi-dev
+      - rustc