diff --git a/gst/gstmemory.c b/gst/gstmemory.c
index 022d397162..8eb112e722 100644
--- a/gst/gstmemory.c
+++ b/gst/gstmemory.c
@@ -222,7 +222,7 @@ _default_alloc_alloc (GstAllocator * allocator, gsize size,
 }
 
 static gpointer
-_default_mem_map (GstMemoryDefault * mem, GstMapFlags flags)
+_default_mem_map (GstMemoryDefault * mem, gsize maxsize, GstMapFlags flags)
 {
   return mem->data;
 }