diff --git a/proxmox-schema/src/property_string.rs b/proxmox-schema/src/property_string.rs
index 20c9a30e..7b3aa61e 100644
--- a/proxmox-schema/src/property_string.rs
+++ b/proxmox-schema/src/property_string.rs
@@ -165,6 +165,12 @@ fn iterate_over_property_string() {
     );
     assert!(iter.next().is_none());
 
-    assert!(PropertyIterator::new(r#"key="open \\ value"#).next().unwrap().is_err());
-    assert!(PropertyIterator::new(r#"key="open \\ value\""#).next().unwrap().is_err());
+    assert!(PropertyIterator::new(r#"key="open \\ value"#)
+        .next()
+        .unwrap()
+        .is_err());
+    assert!(PropertyIterator::new(r#"key="open \\ value\""#)
+        .next()
+        .unwrap()
+        .is_err());
 }