diff --git a/src/main/kotlin/app/revanced/patcher/proxy/mutableTypes/MutableMethod.kt b/src/main/kotlin/app/revanced/patcher/proxy/mutableTypes/MutableMethod.kt
index af4d3bc..b35a52d 100644
--- a/src/main/kotlin/app/revanced/patcher/proxy/mutableTypes/MutableMethod.kt
+++ b/src/main/kotlin/app/revanced/patcher/proxy/mutableTypes/MutableMethod.kt
@@ -13,7 +13,7 @@ class MutableMethod(method: Method) : Method, BaseMethodReference() {
     private var returnType = method.returnType
 
     // Create own mutable MethodImplementation (due to not being able to change members like register count)
-    private var implementation = method.implementation?.let { MutableMethodImplementation(it) }
+    private val _implementation by lazy { method.implementation?.let { MutableMethodImplementation(it) } }
     private val _annotations by lazy { method.annotations.map { annotation -> annotation.toMutable() }.toMutableSet() }
     private val _parameters by lazy { method.parameters.map { parameter -> parameter.toMutable() }.toMutableList() }
     private val _parameterTypes by lazy { method.parameterTypes.toMutableList() }
@@ -47,7 +47,7 @@ class MutableMethod(method: Method) : Method, BaseMethodReference() {
     }
 
     override fun getImplementation(): MutableMethodImplementation? {
-        return implementation
+        return _implementation
     }
 
     companion object {