diff --git a/audio/dsoundaudio.c b/audio/dsoundaudio.c
index 3b4afb9..cfc79c1 100644
--- a/audio/dsoundaudio.c
+++ b/audio/dsoundaudio.c
@@ -215,7 +215,7 @@
         break;
 #endif
     default:
-        AUD_log (AUDIO_CAP, "Reason: Unknown (HRESULT %#lx)\n", hr);
+        AUD_log (AUDIO_CAP, "Reason: Unknown (HRESULT 0x%lx)\n", hr);
         return;
     }