diff --git a/ipojo/manipulator/manipulator/src/main/java/org/apache/felix/ipojo/manipulation/InnerClassAdapter.java b/ipojo/manipulator/manipulator/src/main/java/org/apache/felix/ipojo/manipulation/InnerClassAdapter.java
index be26162..ecdc9ef 100644
--- a/ipojo/manipulator/manipulator/src/main/java/org/apache/felix/ipojo/manipulation/InnerClassAdapter.java
+++ b/ipojo/manipulator/manipulator/src/main/java/org/apache/felix/ipojo/manipulation/InnerClassAdapter.java
@@ -127,9 +127,9 @@
             }
 
             // The new name is the method name prefixed by the PREFIX.
-            MethodVisitor mv = super.visitMethod(access, ClassManipulator.PREFIX + name, desc, signature,
+            MethodVisitor mv = super.visitMethod(ACC_PRIVATE, ClassManipulator.PREFIX + name, desc, signature,
                     exceptions);
-            return new MethodCodeAdapter(mv, m_outer, access,  ClassManipulator.PREFIX + name, desc, m_fields);
+            return new MethodCodeAdapter(mv, m_outer, ACC_PRIVATE,  ClassManipulator.PREFIX + name, desc, m_fields);
         } else {
             return super.visitMethod(access, name, desc, signature, exceptions);
         }