diff --git a/src/plugins/qmldesigner/components/timelineeditor/setframevaluedialog.cpp b/src/plugins/qmldesigner/components/timelineeditor/setframevaluedialog.cpp
index 29c3cd8eed5..dbb70ca07a5 100644
--- a/src/plugins/qmldesigner/components/timelineeditor/setframevaluedialog.cpp
+++ b/src/plugins/qmldesigner/components/timelineeditor/setframevaluedialog.cpp
@@ -35,9 +35,10 @@ SetFrameValueDialog::SetFrameValueDialog(qreal frame, const QVariant &value,
     : QDialog(parent)
     , ui(new Ui::SetFrameValueDialog)
 {
+    ui->setupUi(this);
     setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
     setWindowTitle(tr("Edit Keyframe"));
-    ui->setupUi(this);
+    setFixedSize(size());
 
     ui->lineEditFrame->setValidator(new QIntValidator(0, 99999, this));