diff --git a/src/main.cpp b/src/main.cpp
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -43,7 +43,9 @@
 int main(int argc, char **argv)
 {
 	qsrand(std::time(nullptr));
-	QApplication app(argc, argv);
+	// Fixes blurry icons with fractional scaling
+    QGuiApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
+    QApplication app(argc, argv);
 	KLocalizedString::setApplicationDomain("ksudoku");
 
 	KAboutData about(QStringLiteral("ksudoku"),