diff --git a/libavfilter/vf_scale_qsv.c b/libavfilter/vf_scale_qsv.c
index 3cc05b64f3..1cf5367969 100644
--- a/libavfilter/vf_scale_qsv.c
+++ b/libavfilter/vf_scale_qsv.c
@@ -541,7 +541,7 @@ static int qsvscale_config_props(AVFilterLink *outlink)
     return 0;
 
 fail:
-    av_log(NULL, AV_LOG_ERROR,
+    av_log(ctx, AV_LOG_ERROR,
            "Error when evaluating the expression '%s'\n", expr);
     return ret;
 }