diff --git a/libafl_nyx/src/helper.rs b/libafl_nyx/src/helper.rs
index ceb0da5315..47bf31c295 100644
--- a/libafl_nyx/src/helper.rs
+++ b/libafl_nyx/src/helper.rs
@@ -133,7 +133,7 @@ impl NyxHelper {
     }
 
     /// Set a timeout for Nyx
-    pub fn set_timeout(mut self, time: Duration) {
+    pub fn set_timeout(&mut self, time: Duration) {
         let sec: u8 = time
             .as_secs()
             .try_into()