diff --git a/record/ffemu.c b/record/ffemu.c
index 9e8354b7cd..74a68136e1 100644
--- a/record/ffemu.c
+++ b/record/ffemu.c
@@ -972,7 +972,7 @@ static void ffemu_audio_resample(ffemu_t *handle, struct ffemu_audio_data *data)
    {
       // It's always two channels ...
       struct resampler_data info = {0};
-      info.data_in      = (sample_t*)data->data;
+      info.data_in      = (const sample_t*)data->data;
       info.data_out     = handle->audio.resample_out;
       info.input_frames = data->frames;
       info.ratio        = handle->audio.ratio;