diff --git a/src/cpp/lib/QtWidgets/QGridLayout/qgridlayout_wrap.cpp b/src/cpp/lib/QtWidgets/QGridLayout/qgridlayout_wrap.cpp
index 82eca7e96..de09979fc 100644
--- a/src/cpp/lib/QtWidgets/QGridLayout/qgridlayout_wrap.cpp
+++ b/src/cpp/lib/QtWidgets/QGridLayout/qgridlayout_wrap.cpp
@@ -67,7 +67,7 @@ Napi::Value QGridLayoutWrap::addLayout(const Napi::CallbackInfo& info) {
   int rowSpan = info[3].As<Napi::Number>().Int32Value();
   int columnSpan = info[4].As<Napi::Number>().Int32Value();
   Qt::Alignment alignment =
-      static_cast<Qt::Alignment>(info[5].As<Napi::Number>().Int32Value());
+      static_cast<Qt::Alignment>(info[5].As<Napi::Number>().Uint32Value());
   this->instance->addLayout(layout->getInternalInstance(), row, column, rowSpan,
                             columnSpan, alignment);
   return env.Null();
@@ -80,10 +80,12 @@ Napi::Value QGridLayoutWrap::addWidget(const Napi::CallbackInfo& info) {
   Napi::Number qcol = info[2].As<Napi::Number>();
   Napi::Number qrowSpan = info[3].As<Napi::Number>();
   Napi::Number qcolSpan = info[4].As<Napi::Number>();
+  Qt::Alignment alignment =
+      static_cast<Qt::Alignment>(info[5].As<Napi::Number>().Uint32Value());
   NodeWidgetWrap* widget =
       Napi::ObjectWrap<NodeWidgetWrap>::Unwrap(qwidgetObject);
   this->instance->addWidget(widget->getInternalInstance(), qrow, qcol, qrowSpan,
-                            qcolSpan);
+                            qcolSpan, alignment);
 
   return env.Null();
 }
diff --git a/src/lib/QtWidgets/QGridLayout.ts b/src/lib/QtWidgets/QGridLayout.ts
index 4efc4f424..2e8f91c9b 100644
--- a/src/lib/QtWidgets/QGridLayout.ts
+++ b/src/lib/QtWidgets/QGridLayout.ts
@@ -56,8 +56,15 @@ export class QGridLayout extends NodeLayout<QGridLayoutSignals> {
         this.native.addLayout(layout.native, row, column, rowSpan, columnSpan, alignment);
     }
 
-    addWidget(widget: NodeWidget<any>, row = 0, col = 0, rowSpan = 1, colSpan = 1): void {
-        this.native.addWidget(widget.native, row, col, rowSpan, colSpan);
+    addWidget(
+        widget: NodeWidget<any>,
+        row = 0,
+        col = 0,
+        rowSpan = 1,
+        colSpan = 1,
+        alignment = AlignmentFlag.AlignLeft,
+    ): void {
+        this.native.addWidget(widget.native, row, col, rowSpan, colSpan, alignment);
         this.nodeChildren.add(widget);
     }
     removeWidget(widget: NodeWidget<any>): void {