diff --git a/d2stringtablewidget.cpp b/d2stringtablewidget.cpp
index a83a01b..21d298f 100644
--- a/d2stringtablewidget.cpp
+++ b/d2stringtablewidget.cpp
@@ -1,4 +1,5 @@
 #include "d2stringtablewidget.h"
+#include "qtcompat.h"
 
 #include <QProgressDialog>
 #include <QKeyEvent>
@@ -26,7 +27,7 @@ void D2StringTableWidget::keyPressEvent(QKeyEvent *keyEvent)
 {
     switch (keyEvent->key())
     {
-#ifndef Q_OS_MAC
+#ifndef OS_MACOS
         case Qt::Key_Enter:  // Return (usual Enter) or Enter (on the numpad)
 #endif
         case Qt::Key_Return: // starts editing of the current selected cell
@@ -34,7 +35,7 @@ void D2StringTableWidget::keyPressEvent(QKeyEvent *keyEvent)
                 emit itemDoubleClicked(currentItem());
             break;
         // in-place edit
-#ifdef Q_OS_MAC
+#ifdef OS_MACOS
         case Qt::Key_Enter:
 #endif
         case Qt::Key_F2:
@@ -178,7 +179,7 @@ void D2StringTableWidget::changeRowHeaderDisplay()
         QString rowText = QString::number(row);
         if (_displayRowHex)
             rowText += QString(" (0x%2)").arg(row, 0, 16);
-#ifdef Q_OS_MAC
+#ifdef OS_MACOS
         rowText += "  "; // fixes slight text truncation
 #endif
         rowLabels += rowText;
diff --git a/main.cpp b/main.cpp
index 6cd8783..7e3b4b1 100644
--- a/main.cpp
+++ b/main.cpp
@@ -3,6 +3,7 @@
 #include <QTranslator>
 
 #include "qtbleditor.h"
+#include "qtcompat.h"
 
 int main(int argc, char *argv[])
 {
@@ -10,13 +11,13 @@ int main(int argc, char *argv[])
     app.setOrganizationName("kambala");
     app.setApplicationName("QTblEditor");
     app.setApplicationVersion("1.5");
-#ifdef Q_OS_MAC
+#ifdef OS_MACOS
     app.setAttribute(Qt::AA_DontShowIconsInMenus);
 #endif
 
 
     QString locale = QLocale::system().name(), translationsPath =
-#ifdef Q_OS_MAC
+#ifdef OS_MACOS
                      qApp->applicationDirPath() + "/../Resources/" +
 #endif
                      "Translations/" + locale;
diff --git a/qtbleditor.cpp b/qtbleditor.cpp
index 3670865..5d41540 100644
--- a/qtbleditor.cpp
+++ b/qtbleditor.cpp
@@ -24,7 +24,7 @@
 #include <QMimeData>
 #include <QDateTime>
 
-#ifdef Q_OS_MAC
+#ifdef OS_MACOS
 #ifdef IS_QT5
 #include <QStandardPaths>
 #else
@@ -79,7 +79,7 @@ QTblEditor::QTblEditor(QWidget *parent, Qt::WindowFlags flags) : QMainWindow(par
 
     ui.actionRenderGreyAsWhite->setText(tr("Render %1 as white", "Arg is grey's color code").arg(colorStrings.at(2)));
 
-#ifdef Q_OS_MAC
+#ifdef OS_MACOS
     ui.actionInsertAfterCurrent->setShortcut(QKeySequence("+"));
     ui.actionAppendEntry->setShortcut(QKeySequence("Ctrl++"));
     ui.actionGoTo->setShortcut(QKeySequence("Ctrl+L"));
@@ -109,7 +109,7 @@ QTblEditor::QTblEditor(QWidget *parent, Qt::WindowFlags flags) : QMainWindow(par
     _keyHashLabel->setMinimumSize(_keyHashLabel->sizeHint());
     _keyHashLabel->clear();
 
-#ifndef Q_OS_MAC
+#ifndef OS_MACOS
     ui.statusBar->addWidget(new QLabel, 1);
 #endif
     ui.statusBar->addPermanentWidget(_keyHashLabel);
@@ -238,7 +238,7 @@ int QTblEditor::openTableMsgBoxResult()
     openOptsDlg.setEscapeButton(openOptsDlg.addButton(QMessageBox::Cancel));
     openOptsDlg.addButton(tr("Replace active"), QMessageBox::NoRole);
     openOptsDlg.setText(tr("How do you want to open the table?"));
-#ifdef Q_OS_MAC
+#ifdef OS_MACOS
     openOptsDlg.setWindowModality(Qt::WindowModal);
 #endif
     return openOptsDlg.exec();
@@ -989,7 +989,7 @@ bool QTblEditor::isDialogQuestionConfirmed(const QString &text)
 {
     QMessageBox confirmationDialog(QMessageBox::Question, qApp->applicationName(), text, QMessageBox::Yes | QMessageBox::No, this);
     confirmationDialog.setDefaultButton(QMessageBox::Yes);
-#ifdef Q_OS_MAC
+#ifdef OS_MACOS
     confirmationDialog.setWindowModality(Qt::WindowModal);
 #endif
     return confirmationDialog.exec() == QMessageBox::Yes;
@@ -1162,7 +1162,7 @@ void QTblEditor::readSettings()
 
     // read custom colors from file
     QFile f(customColorsFilePath());
-#ifndef Q_OS_MAC
+#ifndef OS_MACOS
     if (!f.exists()) // fallback for older versions
         f.setFileName(kCustomColorsFileName);
 #endif
@@ -1399,7 +1399,7 @@ QString QTblEditor::restoreNewlines(const QString &s)
 
 QString QTblEditor::customColorsFilePath() const
 {
-#ifdef Q_OS_MAC
+#ifdef OS_MACOS
 #ifdef IS_QT5
     QString basePath = QStandardPaths::writableLocation(QStandardPaths::AppDataLocation);
 #else
diff --git a/qtcompat.h b/qtcompat.h
index 4697d47..05593a7 100644
--- a/qtcompat.h
+++ b/qtcompat.h
@@ -3,6 +3,16 @@
 
 #include <QLatin1String>
 
+#if IS_QT5
+# ifdef Q_OS_MACOS
+#  define OS_MACOS
+# endif
+#else
+# ifdef Q_OS_MAC
+#  define OS_MACOS
+# endif
+#endif // IS_QT5
+
 class QFont;
 class QLineEdit;