diff --git a/avconv.c b/avconv.c
index b6639720bc..360d4516cc 100644
--- a/avconv.c
+++ b/avconv.c
@@ -3614,7 +3614,7 @@ static int opt_streamid(const char *opt, const char *arg)
         exit_program(1);
     }
     *p++ = '\0';
-    idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);    
+    idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
     streamid_map = grow_array(streamid_map, sizeof(*streamid_map), &nb_streamid_map, idx+1);
     streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
     return 0;