diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 58dfe971e1be46a2f4331947415d33101032aaf3..78726aeff981b618a5a4aa1a99c624fa3f8ed158 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -1344,7 +1344,7 @@ int attribute_align_arg avcodec_decode_audio3(AVCodecContext *avctx, int16_t *sa
                                               int *frame_size_ptr,
                                               AVPacket *avpkt)
 {
-    AVFrame frame;
+    AVFrame frame = {0};
     int ret, got_frame = 0;
 
     if (avctx->get_buffer != avcodec_default_get_buffer) {