diff --git a/dlls/winepulse.drv/mmdevdrv.c b/dlls/winepulse.drv/mmdevdrv.c
index bb533d92091..f6d05d9165d 100644
--- a/dlls/winepulse.drv/mmdevdrv.c
+++ b/dlls/winepulse.drv/mmdevdrv.c
@@ -3202,7 +3202,7 @@ static HRESULT WINAPI SimpleAudioVolume_SetMute(ISimpleAudioVolume *iface,
     AudioSessionWrapper *This = impl_from_ISimpleAudioVolume(iface);
     AudioSession *session = This->session;
 
-    TRACE("(%p)->(%u, %p)\n", session, mute, context);
+    TRACE("(%p)->(%u, %s)\n", session, mute, debugstr_guid(context));
 
     if (context)
         FIXME("Notifications not supported yet\n");