diff --git a/gst/gstevent.h b/gst/gstevent.h
index e7dbb25c4d..1092040177 100644
--- a/gst/gstevent.h
+++ b/gst/gstevent.h
@@ -501,7 +501,7 @@ GstEvent *      gst_event_new_select_streams    (GList *streams);
 void            gst_event_parse_select_streams  (GstEvent *event, GList **streams);
 
 /* stream-group-done event */
-GstEvent *      gst_event_new_stream_group_done (const guint group_id) G_GNUC_MALLOC;
+GstEvent *      gst_event_new_stream_group_done (guint group_id) G_GNUC_MALLOC;
 void            gst_event_parse_stream_group_done (GstEvent *event, guint *group_id);
 
 /* EOS event */
diff --git a/gst/gsttask.c b/gst/gsttask.c
index d8f17a7e1d..190c4d61b4 100644
--- a/gst/gsttask.c
+++ b/gst/gsttask.c
@@ -134,7 +134,7 @@ SetThreadName (DWORD dwThreadID, LPCSTR szThreadName)
 
   __try {
     RaiseException (0x406D1388, 0, sizeof (info) / sizeof (DWORD),
-        (DWORD *) & info);
+        (const ULONG_PTR *) &info);
   }
   __except (EXCEPTION_CONTINUE_EXECUTION) {
   }
diff --git a/libs/gst/base/gsttypefindhelper.c b/libs/gst/base/gsttypefindhelper.c
index 9aeceb4207..b3286c858f 100644
--- a/libs/gst/base/gsttypefindhelper.c
+++ b/libs/gst/base/gsttypefindhelper.c
@@ -217,8 +217,7 @@ map_failed:
  * If given @probability is higher, replace previously store caps.
  */
 static void
-helper_find_suggest (gpointer data, GstTypeFindProbability probability,
-    GstCaps * caps)
+helper_find_suggest (gpointer data, guint probability, GstCaps * caps)
 {
   GstTypeFindHelper *helper = (GstTypeFindHelper *) data;
 
@@ -462,8 +461,7 @@ buf_helper_find_peek (gpointer data, gint64 off, guint size)
  * If given @probability is higher, replace previously store caps.
  */
 static void
-buf_helper_find_suggest (gpointer data, GstTypeFindProbability probability,
-    GstCaps * caps)
+buf_helper_find_suggest (gpointer data, guint probability, GstCaps * caps)
 {
   GstTypeFindBufHelper *helper = (GstTypeFindBufHelper *) data;