diff --git a/src/core/lombok/eclipse/handlers/HandleBuilder.java b/src/core/lombok/eclipse/handlers/HandleBuilder.java
index a2dd5057..bb9b6dda 100755
--- a/src/core/lombok/eclipse/handlers/HandleBuilder.java
+++ b/src/core/lombok/eclipse/handlers/HandleBuilder.java
@@ -983,7 +983,7 @@ public class HandleBuilder extends EclipseAnnotationHandler<Builder> {
 				}
 				
 				if (field == null) {
-					FieldDeclaration fd = new FieldDeclaration(bfd.builderFieldName, 0, 0);
+					FieldDeclaration fd = new FieldDeclaration(bfd.builderFieldName.clone(), 0, 0);
 					fd.bits |= Eclipse.ECLIPSE_DO_NOT_TOUCH_FLAG;
 					fd.modifiers = ClassFileConstants.AccPrivate;
 					fd.type = copyType(bfd.type);
diff --git a/src/core/lombok/eclipse/handlers/HandleSuperBuilder.java b/src/core/lombok/eclipse/handlers/HandleSuperBuilder.java
index 558c6ec2..0d327d5f 100644
--- a/src/core/lombok/eclipse/handlers/HandleSuperBuilder.java
+++ b/src/core/lombok/eclipse/handlers/HandleSuperBuilder.java
@@ -948,7 +948,7 @@ public class HandleSuperBuilder extends EclipseAnnotationHandler<SuperBuilder> {
 				}
 				
 				if (field == null) {
-					FieldDeclaration fd = new FieldDeclaration(bfd.builderFieldName, 0, 0);
+					FieldDeclaration fd = new FieldDeclaration(bfd.builderFieldName.clone(), 0, 0);
 					fd.bits |= Eclipse.ECLIPSE_DO_NOT_TOUCH_FLAG;
 					fd.modifiers = ClassFileConstants.AccPrivate;
 					fd.type = copyType(bfd.type);