diff --git a/dlls/winegstreamer/gstdemux.c b/dlls/winegstreamer/gstdemux.c
index 4e5f04de7b4..de48efda129 100644
--- a/dlls/winegstreamer/gstdemux.c
+++ b/dlls/winegstreamer/gstdemux.c
@@ -707,7 +707,7 @@ static void init_new_decoded_pad(GstElement *bin, GstPad *pad, gboolean last, GS
     PIN_INFO piOutput;
     const char *typename;
     char *name;
-    AM_MEDIA_TYPE amt = { };
+    AM_MEDIA_TYPE amt = {{0}};
     GstCaps *caps;
     GstStructure *arg;
     GstPad *mypad;