diff --git a/libavutil/buffer.c b/libavutil/buffer.c
index 592527cff4..bccf089aca 100644
--- a/libavutil/buffer.c
+++ b/libavutil/buffer.c
@@ -71,9 +71,6 @@ AVBufferRef *av_buffer_alloc(int size)
     if (!data)
         return NULL;
 
-    if(CONFIG_MEMORY_POISONING)
-        memset(data, 0x2a, size);
-
     ret = av_buffer_create(data, size, av_buffer_default_free, NULL, 0);
     if (!ret)
         av_freep(&data);