diff --git a/porymap.pro b/porymap.pro
index ce74c50c..21417d3e 100644
--- a/porymap.pro
+++ b/porymap.pro
@@ -185,7 +185,7 @@ FORMS    += forms/mainwindow.ui \
     forms/mapimageexporter.ui \
     forms/shortcutseditor.ui \
     forms/preferenceeditor.ui \
-    forms/regionmappropertiesdialog.ui
+    forms/regionmappropertiesdialog.ui \
     forms/colorpicker.ui
 
 RESOURCES += \
diff --git a/src/ui/paletteeditor.cpp b/src/ui/paletteeditor.cpp
index 86f30ecc..d4040724 100644
--- a/src/ui/paletteeditor.cpp
+++ b/src/ui/paletteeditor.cpp
@@ -43,9 +43,9 @@ PaletteEditor::PaletteEditor(Project *project, Tileset *primaryTileset, Tileset
         rgbSpinners.append(this->ui->container->findChild<QSpinBox *>("spin_blue_" + QString::number(i)));
         this->spinners.append(rgbSpinners);
 
-        connect(this->spinners[i][0], &QSpinBox::valueChanged, [=](int) { setRgbFromSpinners(i); });
-        connect(this->spinners[i][1], &QSpinBox::valueChanged, [=](int) { setRgbFromSpinners(i); });
-        connect(this->spinners[i][2], &QSpinBox::valueChanged, [=](int) { setRgbFromSpinners(i); });
+        connect(this->spinners[i][0], QOverload<int>::of(&QSpinBox::valueChanged), [=](int) { setRgbFromSpinners(i); });
+        connect(this->spinners[i][1], QOverload<int>::of(&QSpinBox::valueChanged), [=](int) { setRgbFromSpinners(i); });
+        connect(this->spinners[i][2], QOverload<int>::of(&QSpinBox::valueChanged), [=](int) { setRgbFromSpinners(i); });
     }
 
     this->frames.clear();