diff --git a/CHANGES b/CHANGES
index e67377176..8ea25461c 100644
--- a/CHANGES
+++ b/CHANGES
@@ -19,6 +19,7 @@ Bugfixes:
  - OpenGL: Fix fast-forward on some OpenGL drivers where it may block early
  - GBA BIOS: Fix Sqrt sign
  - GBA BIOS: Fix misaligned RLUnCompReadNormalWrite*
+ - Qt: Fix race condition with setting sample rate
 Misc:
  - GBA Audio: Implement missing flags on SOUNDCNT_X register
 
diff --git a/src/platform/qt/GameController.cpp b/src/platform/qt/GameController.cpp
index dfee2d74b..b1931c3e7 100644
--- a/src/platform/qt/GameController.cpp
+++ b/src/platform/qt/GameController.cpp
@@ -597,7 +597,7 @@ void GameController::setAudioBufferSamples(int samples) {
 		threadInterrupt();
 		redoSamples(samples);
 		threadContinue();
-		QMetaObject::invokeMethod(m_audioProcessor, "setBufferSamples", Q_ARG(int, samples));
+		QMetaObject::invokeMethod(m_audioProcessor, "setBufferSamples", Qt::BlockingQueuedConnection, Q_ARG(int, samples));
 	}
 }