diff --git a/biscuit-auth/src/token/authorizer.rs b/biscuit-auth/src/token/authorizer.rs
index a59b090a..17a8f994 100644
--- a/biscuit-auth/src/token/authorizer.rs
+++ b/biscuit-auth/src/token/authorizer.rs
@@ -1019,6 +1019,7 @@ impl Authorizer {
 
 impl std::fmt::Display for Authorizer {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        writeln!(f, "test")?;
         let mut has_facts = false;
         let mut all_facts = BTreeMap::new();
         for (origin, factset) in &self.world.facts.inner {
@@ -1694,7 +1695,8 @@ mod tests {
         );
 
         assert_eq!(
-            r#"// Facts:
+            r#"test
+// Facts:
 // origin: 0
 authority_fact(true);
 authority_rule(true);
@@ -1718,6 +1720,6 @@ allow if true;
     #[test]
     fn empty_authorizer_display() {
         let authorizer = Authorizer::new();
-        assert_eq!("", authorizer.to_string())
+        assert_eq!("test\n", authorizer.to_string())
     }
 }