diff --git a/transfer.pro b/transfer.pro
index a19f81c2..3bf38991 100644
--- a/transfer.pro
+++ b/transfer.pro
@@ -1,19 +1,32 @@
 TEMPLATE = app
 TARGET = transfer-qt
 VERSION = 1.1.0.0
-INCLUDEPATH += src src/json src/qt src/qt/plugins/mrichtexteditor
-QT += network printsupport
-DEFINES += ENABLE_WALLET
-DEFINES += BOOST_THREAD_USE_LIB BOOST_SPIRIT_THREADSAFE
-CONFIG += no_include_pwd
-CONFIG += thread
-CONFIG += static
-CONFIG += openssl-linked
-CONFIG += openssl
+
+greaterThan(QT_MAJOR_VERSION, 5) {
+    INCLUDEPATH += src src/json src/qt src/qt/plugins/mrichtexteditor
+    QT += network widgets printsupport
+    DEFINES += ENABLE_WALLET
+    DEFINES += BOOST_THREAD_USE_LIB BOOST_SPIRIT_THREADSAFE
+    CONFIG += static
+    CONFIG += no_include_pwd
+    CONFIG += thread
+    CONFIG += openssl-linked
+    CONFIG += openssl
+    QMAKE_CXXFLAGS = -fpermissive
+}
 
 greaterThan(QT_MAJOR_VERSION, 4) {
-    QT += widgets
+    INCLUDEPATH += src src/json src/qt src/qt/plugins/mrichtexteditor
+    QT += network widgets printsupport
+    DEFINES += ENABLE_WALLET
+    DEFINES += BOOST_THREAD_USE_LIB BOOST_SPIRIT_THREADSAFE
     DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0
+    CONFIG += static
+    CONFIG += no_include_pwd
+    CONFIG += thread
+    CONFIG += openssl-linked
+    CONFIG += openssl
+    QMAKE_CXXFLAGS = -fpermissive
 }
 
 linux {
@@ -153,7 +166,7 @@ contains(USE_O3, 1) {
     QMAKE_CFLAGS += -msse2
 }
 
-QMAKE_CXXFLAGS_WARN_ON = -fdiagnostics-show-option -Wall -Wextra -Wno-ignored-qualifiers -Wformat -Wformat-security -Wno-unused-parameter -Wstack-protector -Wunused-function -Wunused-variable -fpermissive -Wconversion-null -Wmaybe-uninitialized
+QMAKE_CXXFLAGS_WARN_ON = -fdiagnostics-show-option -Wall -Wextra -Wno-ignored-qualifiers -Wformat -Wformat-security -Wno-unused-parameter -Wstack-protector
 
 # Input
 DEPENDPATH += src src/json src/qt