diff --git a/interfaces/conversationmessage.h b/interfaces/conversationmessage.h
--- a/interfaces/conversationmessage.h
+++ b/interfaces/conversationmessage.h
@@ -38,7 +38,7 @@
     Q_PROPERTY(qint64 date READ date)
     Q_PROPERTY(qint32 type READ type)
     Q_PROPERTY(qint32 read READ read)
-    Q_PROPERTY(qint32 threadID READ threadID)
+    Q_PROPERTY(qint64 threadID READ threadID)
     Q_PROPERTY(qint32 uID READ uID)
 
 public:
@@ -73,7 +73,7 @@
 
     ConversationMessage(const qint32& eventField, const QString& body, const QString& address,
                         const qint64& date, const qint32& type, const qint32& read,
-                        const qint32& threadID, const qint32& uID,
+                        const qint64& threadID, const qint32& uID,
                         QObject* parent = Q_NULLPTR);
 
     ConversationMessage(const ConversationMessage& other, QObject* parent = Q_NULLPTR);
@@ -87,7 +87,7 @@
     qint64 date() const { return m_date; }
     qint32 type() const { return m_type; }
     qint32 read() const { return m_read; }
-    qint32 threadID() const { return m_threadID; }
+    qint64 threadID() const { return m_threadID; }
     qint32 uID() const { return m_uID; }
 
     QVariantMap toVariant() const;
@@ -129,7 +129,7 @@
     /**
      * Tag which binds individual messages into a thread
      */
-    qint32 m_threadID;
+    qint64 m_threadID;
 
     /**
      * Value which uniquely identifies a message
diff --git a/interfaces/conversationmessage.cpp b/interfaces/conversationmessage.cpp
--- a/interfaces/conversationmessage.cpp
+++ b/interfaces/conversationmessage.cpp
@@ -32,15 +32,15 @@
       m_date(args["date"].toLongLong()),
       m_type(args["type"].toInt()),
       m_read(args["read"].toInt()),
-      m_threadID(args["thread_id"].toInt()),
+      m_threadID(args["thread_id"].toLongLong()),
       m_uID(args["_id"].toInt())
 {
 }
 
 ConversationMessage::ConversationMessage (const qint32& eventField, const QString& body,
                                           const QString& address, const qint64& date,
                                           const qint32& type, const qint32& read,
-                                          const qint32& threadID,
+                                          const qint64& threadID,
                                           const qint32& uID,
                                           QObject* parent)
     : QObject(parent)
@@ -120,7 +120,7 @@
     qint64 date;
     qint32 type;
     qint32 read;
-    qint32 threadID;
+    qint64 threadID;
     qint32 uID;
 
     argument.beginStructure();
diff --git a/plugins/sms/smsplugin.cpp b/plugins/sms/smsplugin.cpp
--- a/plugins/sms/smsplugin.cpp
+++ b/plugins/sms/smsplugin.cpp
@@ -78,7 +78,7 @@
 void SmsPlugin::requestConversation (const QString& conversationID) const
 {
     NetworkPacket np(PACKET_TYPE_SMS_REQUEST_CONVERSATION);
-    np.set("threadID", conversationID.toInt());
+    np.set("threadID", conversationID.toLongLong());
 
     sendPacket(np);
 }