diff --git a/platform/qt/include/qmapboxgl.hpp b/platform/qt/include/qmapboxgl.hpp
index d4b12951e..351a1d954 100644
--- a/platform/qt/include/qmapboxgl.hpp
+++ b/platform/qt/include/qmapboxgl.hpp
@@ -91,7 +91,7 @@ public:
 
     void resetToTemplate(SettingsTemplate);
 
-    QVector<QPair<QString, QString>> defaultStyles();
+    QVector<QPair<QString, QString>> defaultStyles() const;
 
     mbgl::TileServerOptions *tileServerOptionsInternal() const;
 
diff --git a/platform/qt/src/qmapboxgl.cpp b/platform/qt/src/qmapboxgl.cpp
index 328c50976..b99087809 100644
--- a/platform/qt/src/qmapboxgl.cpp
+++ b/platform/qt/src/qmapboxgl.cpp
@@ -487,7 +487,7 @@ void QMapboxGLSettings::resetToTemplate(SettingsTemplate settings_template)
 
     Return all styles that are defined in default settings.
 */
-QVector<QPair<QString, QString> > QMapboxGLSettings::defaultStyles(){
+QVector<QPair<QString, QString> > QMapboxGLSettings::defaultStyles() const {
     QVector<QPair<QString, QString>> styles;
     for (const auto &style : tileServerOptionsInternal()->defaultStyles()) {
         styles.append(QPair<QString, QString>(