diff --git a/bin/app/data/gui/main/main.css b/bin/app/data/gui/main/main.css
index 785331b1..37577ba7 100644
--- a/bin/app/data/gui/main/main.css
+++ b/bin/app/data/gui/main/main.css
@@ -1,7 +1,6 @@
 QToolTip {
 	background-color: #E0E0E0;
 	color: black;
-	font-size: <setting:font_size>px;
 }
 
 QPushButton {
diff --git a/src/lib_gui/qt/window/QtMainWindow.cpp b/src/lib_gui/qt/window/QtMainWindow.cpp
index 6e8a84a3..0d02ada9 100644
--- a/src/lib_gui/qt/window/QtMainWindow.cpp
+++ b/src/lib_gui/qt/window/QtMainWindow.cpp
@@ -8,6 +8,7 @@
 #include <QSettings>
 #include <QTimer>
 #include <QToolBar>
+#include <QToolTip>
 
 #include "Application.h"
 #include "CompositeView.h"
@@ -482,6 +483,10 @@ void QtMainWindow::setContentEnabled(bool enabled)
 void QtMainWindow::refreshStyle()
 {
 	setStyleSheet(utility::getStyleSheet(ResourcePaths::getGuiPath().concatenate(L"main/main.css")).c_str());
+
+	QFont tooltipFont = QToolTip::font();
+	tooltipFont.setPixelSize(ApplicationSettings::getInstance()->getFontSize());
+	QToolTip::setFont(tooltipFont);
 }
 
 void QtMainWindow::setWindowsTaskbarProgress(float progress)