diff --git a/snap/snapcraft.yaml b/snap/snapcraft.yaml
index 2f2b23f..00ec03a 100644
--- a/snap/snapcraft.yaml
+++ b/snap/snapcraft.yaml
@@ -45,6 +45,7 @@ parts:
     override-build: |
       # Give ourselves enough memory to build
       dd if=/dev/zero of=/tmp/swap bs=1M count=2000
+      chmod 0600 /tmp/swap
       mkswap /tmp/swap
       swapon /tmp/swap