diff --git a/dlls/evr/mixer.c b/dlls/evr/mixer.c
index 03e2d166155..0d4bf8bc500 100644
--- a/dlls/evr/mixer.c
+++ b/dlls/evr/mixer.c
@@ -1029,7 +1029,7 @@ static HRESULT WINAPI video_mixer_transform_ProcessMessage(IMFTransform *iface,
     HRESULT hr = S_OK;
     unsigned int i;
 
-    TRACE("%p, %u, %#lx.\n", iface, message, param);
+    TRACE("%p, %#x, %#lx.\n", iface, message, param);
 
     switch (message)
     {