diff --git a/snap/snapcraft.yaml b/snap/snapcraft.yaml
index 7e3dcce..184b82b 100644
--- a/snap/snapcraft.yaml
+++ b/snap/snapcraft.yaml
@@ -29,6 +29,7 @@ parts:
       - libffi-dev
       - python3-dev
       - cargo
+      - pkg-config
   certbot-metadata:
     plugin: dump
     source: .