diff --git a/libavcodec/mjpeg_parser.c b/libavcodec/mjpeg_parser.c
index d14aaaf742..a25f449d03 100644
--- a/libavcodec/mjpeg_parser.c
+++ b/libavcodec/mjpeg_parser.c
@@ -81,13 +81,13 @@ static int jpeg_parse(AVCodecParserContext *s,
     if(s->flags & PARSER_FLAG_COMPLETE_FRAMES){
         next= buf_size;
     }else{
-    next= find_frame_end(pc, buf, buf_size);
+        next= find_frame_end(pc, buf, buf_size);
 
-    if (ff_combine_frame(pc, next, &buf, &buf_size) < 0) {
-        *poutbuf = NULL;
-        *poutbuf_size = 0;
-        return buf_size;
-    }
+        if (ff_combine_frame(pc, next, &buf, &buf_size) < 0) {
+            *poutbuf = NULL;
+            *poutbuf_size = 0;
+            return buf_size;
+        }
     }
 
     *poutbuf = buf;