diff --git a/libs/sdl2/source/audio_engine.cpp b/libs/sdl2/source/audio_engine.cpp
index 2ce4a50f..a694935d 100644
--- a/libs/sdl2/source/audio_engine.cpp
+++ b/libs/sdl2/source/audio_engine.cpp
@@ -89,6 +89,9 @@ namespace psemek::sdl2
 
 			for (auto s : self->buffer_)
 				*dst++ = static_cast<std::int16_t>(std::max(std::min((65535.f * s - 1.f) / 2.f, 32767.f), -32768.f));
+
+			if (auto duration = prof.duration(); duration > (size * audio::inv_frequency / 2))
+				log::warning() << "Audio can't keep up, callback took " << std::setprecision(5) << (1000.0 * duration) << " ms";
 		}
 
 		audio::channel_ptr audio_engine_impl::output()