diff --git a/ui/qt/conversation_dialog.cpp b/ui/qt/conversation_dialog.cpp
index cc4f7e6fbb..d99f03b01d 100644
--- a/ui/qt/conversation_dialog.cpp
+++ b/ui/qt/conversation_dialog.cpp
@@ -212,7 +212,8 @@ void ConversationDialog::followStream()
     }
 
     // Will set the display filter too.
-    emit openFollowStreamDialog(ftype, conv_item->conv_id);
+    // TCP and UDP do not have a "sub-stream", so set a dummy value.
+    emit openFollowStreamDialog(ftype, conv_item->conv_id, 0);
 }
 
 void ConversationDialog::graphTcp()
diff --git a/ui/qt/conversation_dialog.h b/ui/qt/conversation_dialog.h
index 1fcfc6b60f..b6b86422b6 100644
--- a/ui/qt/conversation_dialog.h
+++ b/ui/qt/conversation_dialog.h
@@ -57,7 +57,7 @@ public slots:
 
 signals:
     void filterAction(QString filter, FilterAction::Action action, FilterAction::ActionType type);
-    void openFollowStreamDialog(follow_type_t type, guint stream_num);
+    void openFollowStreamDialog(follow_type_t type, guint stream_num, guint sub_stream_num);
     void openTcpStreamGraph(int graph_type);
 
 private:
diff --git a/ui/qt/main_window_slots.cpp b/ui/qt/main_window_slots.cpp
index 0827d3678d..ce0062bb9d 100644
--- a/ui/qt/main_window_slots.cpp
+++ b/ui/qt/main_window_slots.cpp
@@ -3030,8 +3030,8 @@ void MainWindow::statCommandConversations(const char *arg, void *userdata)
     ConversationDialog *conv_dialog = new ConversationDialog(*this, capture_file_, GPOINTER_TO_INT(userdata), arg);
     connect(conv_dialog, SIGNAL(filterAction(QString, FilterAction::Action, FilterAction::ActionType)),
         this, SIGNAL(filterAction(QString, FilterAction::Action, FilterAction::ActionType)));
-    connect(conv_dialog, SIGNAL(openFollowStreamDialog(follow_type_t, guint)),
-        this, SLOT(openFollowStreamDialog(follow_type_t, guint)));
+    connect(conv_dialog, SIGNAL(openFollowStreamDialog(follow_type_t, guint, guint)),
+        this, SLOT(openFollowStreamDialog(follow_type_t, guint, guint)));
     connect(conv_dialog, SIGNAL(openTcpStreamGraph(int)),
         this, SLOT(openTcpStreamDialog(int)));
     conv_dialog->show();