diff --git a/drivers/pulseaudio/audio_driver_pulseaudio.cpp b/drivers/pulseaudio/audio_driver_pulseaudio.cpp
index 5de7a89f6b..1433e9ad06 100644
--- a/drivers/pulseaudio/audio_driver_pulseaudio.cpp
+++ b/drivers/pulseaudio/audio_driver_pulseaudio.cpp
@@ -374,6 +374,7 @@ float AudioDriverPulseAudio::get_latency() {
 	lock();
 
 	if (pa_str == nullptr) {
+		unlock();
 		return 0;
 	}