diff --git a/src/qt/guiutil.h b/src/qt/guiutil.h
--- a/src/qt/guiutil.h
+++ b/src/qt/guiutil.h
@@ -5,8 +5,8 @@
 #ifndef BITCOIN_QT_GUIUTIL_H
 #define BITCOIN_QT_GUIUTIL_H
 
-#include "amount.h"
-#include "fs.h"
+#include <amount.h>
+#include <fs.h>
 
 #include <QEvent>
 #include <QHeaderView>
@@ -22,6 +22,10 @@
 class CChainParams;
 class Config;
 
+namespace interfaces {
+class Node;
+}
+
 QT_BEGIN_NAMESPACE
 class QAbstractItemView;
 class QDateTime;
@@ -64,7 +68,7 @@
 QString formatBitcoinURI(const Config &config, const SendCoinsRecipient &info);
 
 // Returns true if given address+amount meets "dust" definition
-bool isDust(const QString &address, const Amount amount,
+bool isDust(interfaces::Node &node, const QString &address, const Amount amount,
             const CChainParams &chainParams);
 
 // HTML escaping for rich text controls
diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp
--- a/src/qt/guiutil.cpp
+++ b/src/qt/guiutil.cpp
@@ -2,26 +2,26 @@
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
-#include "guiutil.h"
-
-#include "bitcoinaddressvalidator.h"
-#include "bitcoinunits.h"
-#include "dstencode.h"
-#include "qvalidatedlineedit.h"
-#include "walletmodel.h"
-
-#include "cashaddr.h"
-#include "config.h"
-#include "dstencode.h"
-#include "fs.h"
-#include "init.h"
-#include "policy/policy.h"
-#include "primitives/transaction.h"
-#include "protocol.h"
-#include "script/script.h"
-#include "script/standard.h"
-#include "util.h"
-#include "utilstrencodings.h"
+#include <qt/guiutil.h>
+
+#include <base58.h>
+#include <cashaddr.h>
+#include <chainparams.h>
+#include <config.h>
+#include <dstencode.h>
+#include <fs.h>
+#include <interfaces/node.h>
+#include <policy/policy.h>
+#include <primitives/transaction.h>
+#include <protocol.h>
+#include <qt/bitcoinaddressvalidator.h>
+#include <qt/bitcoinunits.h>
+#include <qt/qvalidatedlineedit.h>
+#include <qt/walletmodel.h>
+#include <script/script.h>
+#include <script/standard.h>
+#include <util.h>
+#include <utilstrencodings.h>
 
 #ifdef WIN32
 #ifdef _WIN32_WINNT
@@ -36,9 +36,9 @@
 #ifndef NOMINMAX
 #define NOMINMAX
 #endif
-#include "shellapi.h"
-#include "shlobj.h"
-#include "shlwapi.h"
+#include <shellapi.h>
+#include <shlobj.h>
+#include <shlwapi.h>
 #endif
 
 #include <boost/filesystem/detail/utf8_codecvt_facet.hpp>
@@ -285,12 +285,12 @@
     return ret;
 }
 
-bool isDust(const QString &address, const Amount amount,
+bool isDust(interfaces::Node &node, const QString &address, const Amount amount,
             const CChainParams &chainParams) {
     CTxDestination dest = DecodeDestination(address.toStdString(), chainParams);
     CScript script = GetScriptForDestination(dest);
     CTxOut txOut(amount, script);
-    return txOut.IsDust(dustRelayFee);
+    return txOut.IsDust(node.getDustRelayFee());
 }
 
 QString HtmlEscape(const QString &str, bool fMultiLine) {
diff --git a/src/qt/sendcoinsdialog.cpp b/src/qt/sendcoinsdialog.cpp
--- a/src/qt/sendcoinsdialog.cpp
+++ b/src/qt/sendcoinsdialog.cpp
@@ -247,7 +247,7 @@
         SendCoinsEntry *entry =
             qobject_cast<SendCoinsEntry *>(ui->entries->itemAt(i)->widget());
         if (entry) {
-            if (entry->validate()) {
+            if (entry->validate(model->node())) {
                 recipients.append(entry->getValue());
             } else {
                 valid = false;
diff --git a/src/qt/sendcoinsentry.h b/src/qt/sendcoinsentry.h
--- a/src/qt/sendcoinsentry.h
+++ b/src/qt/sendcoinsentry.h
@@ -5,7 +5,7 @@
 #ifndef BITCOIN_QT_SENDCOINSENTRY_H
 #define BITCOIN_QT_SENDCOINSENTRY_H
 
-#include "walletmodel.h"
+#include <qt/walletmodel.h>
 
 #include <QStackedWidget>
 
@@ -30,7 +30,7 @@
     ~SendCoinsEntry();
 
     void setModel(WalletModel *model);
-    bool validate();
+    bool validate(interfaces::Node &node);
     SendCoinsRecipient getValue();
 
     /** Return whether the entry is still empty and unedited */
diff --git a/src/qt/sendcoinsentry.cpp b/src/qt/sendcoinsentry.cpp
--- a/src/qt/sendcoinsentry.cpp
+++ b/src/qt/sendcoinsentry.cpp
@@ -2,16 +2,16 @@
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
-#include "sendcoinsentry.h"
-#include "ui_sendcoinsentry.h"
+#include <qt/forms/ui_sendcoinsentry.h>
+#include <qt/sendcoinsentry.h>
 
-#include "addressbookpage.h"
-#include "addresstablemodel.h"
-#include "config.h"
-#include "guiutil.h"
-#include "optionsmodel.h"
-#include "platformstyle.h"
-#include "walletmodel.h"
+#include <config.h>
+#include <qt/addressbookpage.h>
+#include <qt/addresstablemodel.h>
+#include <qt/guiutil.h>
+#include <qt/optionsmodel.h>
+#include <qt/platformstyle.h>
+#include <qt/walletmodel.h>
 
 #include <QApplication>
 #include <QClipboard>
@@ -130,7 +130,7 @@
     Q_EMIT useAvailableBalance(this);
 }
 
-bool SendCoinsEntry::validate() {
+bool SendCoinsEntry::validate(interfaces::Node &node) {
     if (!model) {
         return false;
     }
@@ -159,8 +159,9 @@
     }
 
     // Reject dust outputs:
-    if (retval && GUIUtil::isDust(ui->payTo->text(), ui->payAmount->value(),
-                                  model->getChainParams())) {
+    if (retval &&
+        GUIUtil::isDust(node, ui->payTo->text(), ui->payAmount->value(),
+                        model->getChainParams())) {
         ui->payAmount->setValid(false);
         retval = false;
     }