diff --git a/src/zm_videostore.cpp b/src/zm_videostore.cpp
index 4d10fb67b..eda382077 100644
--- a/src/zm_videostore.cpp
+++ b/src/zm_videostore.cpp
@@ -654,7 +654,7 @@ bool VideoStore::setup_resampler() {
 #else
 // codec is already open in ffmpeg_camera
   audio_in_ctx = audio_in_stream->codec;
-  audio_in_codec = reinterpret_cast<AVCodec *>(audio_in_ctx->codec);
+  audio_in_codec = reinterpret_cast<const AVCodec *>(audio_in_ctx->codec);
   //audio_in_codec = avcodec_find_decoder(audio_in_stream->codec->codec_id);
 #endif
 
diff --git a/src/zm_videostore.h b/src/zm_videostore.h
index 4c6dbf871..01dbc4d78 100644
--- a/src/zm_videostore.h
+++ b/src/zm_videostore.h
@@ -38,7 +38,7 @@ private:
   AVFrame *out_frame;
 
   AVCodecContext *video_in_ctx;
-  AVCodec *audio_in_codec;
+  const AVCodec *audio_in_codec;
   AVCodecContext *audio_in_ctx;
 
   // The following are used when encoding the audio stream to AAC