diff --git a/afl/src/events/mod.rs b/afl/src/events/mod.rs
index 49b46fede9..93b02c3bf4 100644
--- a/afl/src/events/mod.rs
+++ b/afl/src/events/mod.rs
@@ -40,7 +40,7 @@ pub trait Event {
     {
         match write!(formatter, "[{}]", Self::name()) {
             Ok(_) => Ok(()),
-            Err(_) => Err(AflError::Unknown("write error".to_string())),
+            Err(_) => Err(AflError::Unknown("write error".into())),
         }
     }