diff --git a/src/video_provider_bestsource.cpp b/src/video_provider_bestsource.cpp
index 2d7c6c952..c7412a4e0 100644
--- a/src/video_provider_bestsource.cpp
+++ b/src/video_provider_bestsource.cpp
@@ -137,8 +137,11 @@ BSVideoProvider::BSVideoProvider(agi::fs::path const& filename, std::string cons
 			if (frame == nullptr) {
 				throw VideoOpenError("Couldn't read frame!");
 			}
-
+#if (LIBAVUTIL_VERSION_MAJOR == 58 && LIBAVUTIL_VERSION_MINOR >= 7) || LIBAVUTIL_VERSION_MAJOR >= 59
+			if (frame->GetAVFrame()->flags & AV_FRAME_FLAG_KEY) {
+#else
 			if (frame->GetAVFrame()->key_frame) {
+#endif
 				Keyframes.push_back(n);
 			}