diff --git a/src/builder.rs b/src/builder.rs
index 3230844..abfc965 100644
--- a/src/builder.rs
+++ b/src/builder.rs
@@ -781,7 +781,7 @@ impl<D: Clone> ImplementationBuilder<Cron<D>> for DefaultBuilder {
     UserForDomain(resource.0.clone())
   }
 
-  type Implementation = CronSymbol<'static, Box<str>, Rc<str>, StdCommandRunner>;
+  type Implementation = CronSymbol<'static, Box<[u8]>, Rc<str>, StdCommandRunner>;
   fn create(
     resource: &Cron<D>,
     (): &<Cron<D> as Resource>::Artifact,
diff --git a/src/symbols/cron.rs b/src/symbols/cron.rs
index c0d7008..1152a30 100644
--- a/src/symbols/cron.rs
+++ b/src/symbols/cron.rs
@@ -10,11 +10,11 @@ pub struct Cron<'r, C, U, R> {
   command_runner: &'r R,
 }
 
-impl<'r, U, R> Cron<'r, Box<str>, U, R> {
+impl<'r, U, R> Cron<'r, Box<[u8]>, U, R> {
   pub fn new<C: AsRef<str>>(user: U, content: C, command_runner: &'r R) -> Self {
     Self {
       user,
-      content: (String::from(content.as_ref()) + "\n").into(),
+      content: (String::from(content.as_ref()) + "\n").as_bytes().into(),
       command_runner,
     }
   }