diff --git a/doc/examples/filtering_audio.c b/doc/examples/filtering_audio.c
index 8a3d91f41d..4081378265 100644
--- a/doc/examples/filtering_audio.c
+++ b/doc/examples/filtering_audio.c
@@ -254,9 +254,7 @@ end:
     av_frame_free(&filt_frame);
 
     if (ret < 0 && ret != AVERROR_EOF) {
-        char buf[1024];
-        av_strerror(ret, buf, sizeof(buf));
-        fprintf(stderr, "Error occurred: %s\n", buf);
+        fprintf(stderr, "Error occurred: %s\n", av_err2str(ret));
         exit(1);
     }
 
diff --git a/doc/examples/filtering_video.c b/doc/examples/filtering_video.c
index 9c9881468d..c93332085f 100644
--- a/doc/examples/filtering_video.c
+++ b/doc/examples/filtering_video.c
@@ -243,9 +243,7 @@ end:
     av_frame_free(&filt_frame);
 
     if (ret < 0 && ret != AVERROR_EOF) {
-        char buf[1024];
-        av_strerror(ret, buf, sizeof(buf));
-        fprintf(stderr, "Error occurred: %s\n", buf);
+        fprintf(stderr, "Error occurred: %s\n", av_err2str(ret));
         exit(1);
     }