diff --git a/libafl/src/mutators/havoc_mutations.rs b/libafl/src/mutators/havoc_mutations.rs
index 2da7d1a5d3..1ddf945c42 100644
--- a/libafl/src/mutators/havoc_mutations.rs
+++ b/libafl/src/mutators/havoc_mutations.rs
@@ -285,11 +285,10 @@ mod tests {
                 &self.vec
             }
         }
-        impl DefaultMutators<MappedHavocMutationsType<Self, MutVecInput<'static>, &'static [u8]>>
-            for CustomInput
-        {
-            fn default_mutators(
-            ) -> MappedHavocMutationsType<Self, MutVecInput<'static>, &'static [u8]> {
+        impl DefaultMutators for CustomInput {
+            type Type = MappedHavocMutationsType<Self, MutVecInput<'static>, &'static [u8]>;
+
+            fn default_mutators() -> Self::Type {
                 mapped_havoc_mutations(Self::vec_mut, Self::vec)
             }
         }
diff --git a/libafl/src/mutators/mod.rs b/libafl/src/mutators/mod.rs
index ff609fc374..5219ae4e23 100644
--- a/libafl/src/mutators/mod.rs
+++ b/libafl/src/mutators/mod.rs
@@ -399,8 +399,10 @@ impl Named for NopMutator {
 }
 
 /// Extensions of [`crate::inputs::Input`]s that have default mutators
-pub trait DefaultMutators<MT> {
+pub trait DefaultMutators {
+    /// The resulting mutator list type
+    type Type;
     /// Get the default mutators for this type
     #[must_use]
-    fn default_mutators() -> MT;
+    fn default_mutators() -> Self::Type;
 }