diff --git a/doc/examples/encode_video.c b/doc/examples/encode_video.c
index 71c8c0bbee..265b529165 100644
--- a/doc/examples/encode_video.c
+++ b/doc/examples/encode_video.c
@@ -39,7 +39,7 @@
 int main(int argc, char **argv)
 {
     const char *filename, *codec_name;
-    AVCodec *codec;
+    const AVCodec *codec;
     AVCodecContext *c= NULL;
     int i, ret, x, y, got_output;
     FILE *f;