diff --git a/Play/Video/mpvplayer.cpp b/Play/Video/mpvplayer.cpp
index bf767ad..e1b1864 100644
--- a/Play/Video/mpvplayer.cpp
+++ b/Play/Video/mpvplayer.cpp
@@ -712,8 +712,10 @@ void MPVPlayer::initializeGL()
         {MPV_RENDER_PARAM_INVALID, nullptr}
     };
 
+    if (mpv_gl == NULL) {
     if (mpv_render_context_create(&mpv_gl, mpv, params) < 0)
         throw std::runtime_error("failed to initialize mpv GL context");
+    }
     mpv_render_context_set_update_callback(mpv_gl, MPVPlayer::on_update, reinterpret_cast<void *>(this));
 
     const char *version = reinterpret_cast<const char*>(glFuns->glGetString(GL_VERSION));