diff --git a/src/gui/CloneDialog.cpp b/src/gui/CloneDialog.cpp
index 4ba5856bf..72199ae5a 100644
--- a/src/gui/CloneDialog.cpp
+++ b/src/gui/CloneDialog.cpp
@@ -29,7 +29,11 @@ CloneDialog::CloneDialog(DatabaseWidget* parent, Database* db, Entry* entry)
     m_ui->setupUi(this);
 
     window()->layout()->setSizeConstraint(QLayout::SetFixedSize);
+#if QT_VERSION >= QT_VERSION_CHECK(5, 9, 0)
     setWindowFlag(Qt::WindowContextHelpButtonHint, false);
+#else
+    setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
+#endif
     setAttribute(Qt::WA_DeleteOnClose);
 
     connect(m_ui->buttonBox, SIGNAL(rejected()), SLOT(close()));
diff --git a/src/gui/DatabaseOpenDialog.cpp b/src/gui/DatabaseOpenDialog.cpp
index acf905044..366f7a9cc 100644
--- a/src/gui/DatabaseOpenDialog.cpp
+++ b/src/gui/DatabaseOpenDialog.cpp
@@ -36,7 +36,11 @@ DatabaseOpenDialog::DatabaseOpenDialog(QWidget* parent)
 {
     setWindowTitle(tr("Unlock Database - KeePassXC"));
     setWindowFlags(Qt::Dialog);
+#if QT_VERSION >= QT_VERSION_CHECK(5, 9, 0)
     setWindowFlag(Qt::WindowContextHelpButtonHint, false);
+#else
+    setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
+#endif
 #ifdef Q_OS_LINUX
     // Linux requires this to overcome some Desktop Environments (also no Quick Unlock)
     setWindowFlags(windowFlags() | Qt::WindowStaysOnTopHint);
diff --git a/src/gui/TotpSetupDialog.cpp b/src/gui/TotpSetupDialog.cpp
index 875dfcfd0..d33d9ce39 100644
--- a/src/gui/TotpSetupDialog.cpp
+++ b/src/gui/TotpSetupDialog.cpp
@@ -29,7 +29,11 @@ TotpSetupDialog::TotpSetupDialog(QWidget* parent, Entry* entry)
 {
     m_ui->setupUi(this);
     setAttribute(Qt::WA_DeleteOnClose);
+#if QT_VERSION >= QT_VERSION_CHECK(5, 9, 0)
     setWindowFlag(Qt::WindowContextHelpButtonHint, false);
+#else
+    setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
+#endif
     setFixedSize(sizeHint());
 
     connect(m_ui->buttonBox, SIGNAL(rejected()), SLOT(close()));