diff --git a/Applications/SoundPlayer/SoundPlayerWidget.h b/Applications/SoundPlayer/SoundPlayerWidget.h
index 44fb0dd8b4..58500c0d09 100644
--- a/Applications/SoundPlayer/SoundPlayerWidget.h
+++ b/Applications/SoundPlayer/SoundPlayerWidget.h
@@ -79,7 +79,7 @@ private:
     GUI::Window& m_window;
     NonnullRefPtr<Audio::ClientConnection> m_connection;
     PlaybackManager m_manager;
-    float m_sample_ratio;
+    float m_sample_ratio { 1.0 };
     RefPtr<GUI::Label> m_status;
     RefPtr<GUI::Label> m_elapsed;
     RefPtr<GUI::Label> m_remaining;