json-serialiser

diff --git a/src/main/java/br/ufrgs/inf/prosoft/jsonserialiser/JSONSerialiser.java b/src/main/java/br/ufrgs/inf/prosoft/jsonserialiser/JSONSerialiser.java
index a01e72c..53c5da4 100644
--- a/src/main/java/br/ufrgs/inf/prosoft/jsonserialiser/JSONSerialiser.java
+++ b/src/main/java/br/ufrgs/inf/prosoft/jsonserialiser/JSONSerialiser.java
@@ -193,7 +193,7 @@ public class JSONSerialiser {
                 ignoredPackages.addAll(Arrays.asList(internals));
                 for (String ignoredPackage : ignoredPackages) {
                     if (objectPackageName.startsWith(ignoredPackage)) {
-                        this.writer.append("\"").append(String.valueOf(object)).append("\"");
+                        serialiseString(String.valueOf(object));
                         return;
                     }
                 }