diff --git a/libavcodec/lzo.c b/libavcodec/lzo.c
index 46166a1133..ab7766b575 100644
--- a/libavcodec/lzo.c
+++ b/libavcodec/lzo.c
@@ -34,7 +34,7 @@ static inline int get_byte(LZOContext *c) {
     if (c->in < c->in_end)
         return *c->in++;
     c->error |= LZO_INPUT_DEPLETED;
-    return -1;
+    return 0;
 }
 
 /**