diff --git a/src/ui/widgets/framespinbox.cpp b/src/ui/widgets/framespinbox.cpp
index 559ddff0c..18c337a39 100644
--- a/src/ui/widgets/framespinbox.cpp
+++ b/src/ui/widgets/framespinbox.cpp
@@ -39,3 +39,11 @@ QString FrameSpinBox::textFromValue(int value) const
 {
     return mDisplayTimecode ? AppSupport::getTimeCodeFromFrame(value, mFps) : QSpinBox::textFromValue(value);
 }
+
+void FrameSpinBox::fixup(QString &str) const
+{
+    if (mDisplayTimecode) {
+        str = QString::number(AppSupport::getFrameFromTimeCode(str, mFps));
+    }
+    QSpinBox::fixup(str);
+}
diff --git a/src/ui/widgets/framespinbox.h b/src/ui/widgets/framespinbox.h
index f19dacf9b..158c08df9 100644
--- a/src/ui/widgets/framespinbox.h
+++ b/src/ui/widgets/framespinbox.h
@@ -37,6 +37,7 @@ class UI_EXPORT FrameSpinBox : public QSpinBox
     void setDisplayTimeCode(const bool &enabled);
     void updateFps(const qreal &fps);
     QString textFromValue(int value) const override;
+    void fixup(QString &str) const override;
 
 private:
     bool mDisplayTimecode = false;